[
Alexandrova, A., Dimitrov, M., Vassilev, K., Sopotlieva, D., Pedashenko, H., & Tashev, T. (2020). Forest vegetation diversity of the Slivenska Mountain (Eastern Stara planina, Bulgaria) Hacquetia 19(2): 233–258. https://doi.org/10.2478/hacq-2020-0008.
]Search in Google Scholar
[
Apostolova, I., & Meshinev, T. (2000). Biodiversity of plant communities in Central Balkan National Park. In: Sakalian, M. (Ed.), Biological diversity of the Central Balkan National Park. USAID, Sofia, Pensoft: 169–267. [in Bulgarian]
]Search in Google Scholar
[
Bern Convention (https://eur-lex.europa.eu/BG/legal-content/summary/bern-convention.html).
]Search in Google Scholar
[
Bern Convention On The Conservation Of European Wildlife And Natural Habitats 1979. Resolution No. 4 (1996) listing endangered natural habitats requiring specific conservation measures. https://www.coe.int/en/web/bern-convention, https://www.coe.int/en/web/bern-convention/resolutions.
]Search in Google Scholar
[
Biserkov, V., Gussev, Ch., Popov, V., Hibaum, G., Roussakova, V., Pandurski, I,. Uzunov, Y., Dimitrov, M., Tzonev, R., & Tsoneva, S. (Eds.) (2015). Red Data Book of the Republic of Bulgaria. Volume 3, Natural habitats, 422 pp.
]Search in Google Scholar
[
Blasi, C., Capotorti, G., Copiz, R., Guida, D., Mollo, B., Smiraglia, D., & Zavattero, L. (2014). Classification and mapping of the ecoregions of Italy. Plant Biosystems, 148(6), 1255–1345.
]Search in Google Scholar
[
Bondev I. (1991). The vegetation of Bulgaria. Map in M 1: 600 000 with explanatory text, Sofia, 184 pp. [in Bulgarian]
]Search in Google Scholar
[
Bondev, I. (2002). Geobotanical regioning. In: Kopralev, I., Yordanova, M., & Mladenov, Ch. (eds.), Geography of Bulgaria. Physical and socioeconomic geography. ForKom, Sofia: 336–352. [in Bulgarian]
]Search in Google Scholar
[
Braun-Blanquet, J. (1964). Pflanzensoziologie, Grundzüge der Vegetationskunde, 3rd ed., Springer, Wien, New York, 865 pp.
]Search in Google Scholar
[
Capotorti, G., Anzellotti, I., Attorre, F., Copiz, R., Mollo, B., Zavattero, L., & Blasi, C. (2014). Ecological classification of land and ecosystem mapping. Towards the implementation of Action 5 of the European Biodiversity Strategy to 2020 in Italy. Annali di Botanica (Roma), 4, 9–17.
]Search in Google Scholar
[
Čarni, A. (2016a). Vegetation of deciduous forests in the Balkan Peninsula. Contributions, Section of Natural, Mathematical and Biotechnical Sciences, MASA, 37(2), 93–104.
]Search in Google Scholar
[
Čarni, A. (2016b). Xero-thermophilous broad-leaved ravine forests of SE Europe. In: Willner, W., Solomeshch, A., Čarni, A., Bergmeier, E., Ermakov, N., & Mucina, L., Description and validation of some European forest syntaxa – a supplement to the EuroVegChecklist. Hacquetia, 15(1), 15–25. https://doi.org/10.1515/hacq-2016-0005
]Search in Google Scholar
[
Čarni, A., Košir, P., Karadžić, B., Matevski, V., Redžić, S., & Škvorc, Ž. (2009). Thermophilous deciduous forests in Southeastern Europe. Plant Biosystems, 143, 1–13.
]Search in Google Scholar
[
Catalog of Life (COL) (http://www.catalogueoflife.org).
]Search in Google Scholar
[
Chytrý, M., & Otýpková, Z. (2003). Plot sizes for phytosociological sampling of European vegetation. Journal of Vegetation Science, 14(4), 563–570.
]Search in Google Scholar
[
Chytrý, M. (Ed.). (2013). Vegetation of the Czech Republic 4. Forest and Scrub Vegetation. Vyd. 1. Academia, Praha, 551 pp.
]Search in Google Scholar
[
Chytrý, M., Tichý, L., Hennekens, S.M., Knollová, I., Janssen, J.A.M., Rodwell, J.S., Peterka, T., Marcenò, C., Landucci, F., Danihelka, J., Hájek, M., Dengler, J., Novák, P., Zukal, D., Jiménez-Alfaro, B., Mucina, L., Abdulhak, S., Aćić, S., Agrillo, E., Attorre, F., Bergmeier, E., Biurrun, I., Boch, S., Bölöni, J., Bonari, G., Braslavskaya, T., Bruelheide, H., Campos, J.A., Čarni, A., Casella, L., Ćuk, M., Ćušterevska, R., De Bie, E., Delbosc, P., Demina, O., Didukh, Y., Dítě, D., Dziuba, T., Ewald, J., Gavilán, R.G., Gégout, J.-C., Giusso del Galdo, G.P., Golub, V., Goncharova, N., Goral, F., Graf, U., Indreica, A., Isermann, M., Jandt, U., Jansen, F., Jansen, J., Jašková, A., Jiroušek, M., Kącki, Z., Kalníková, V., Kavgacı, A., Khanina, L., Korolyuk, A.Yu., Kozhevnikova, M., Kuzemko, A., Küzmič, F., Kuznetsov, O.L., Laiviņš, M., Lavrinenko, I., Lavrinenko, O., Lebedeva, M., Lososová, Z., Lysenko, T., Maciejewski, L., Mardari, C., Marinšek, A., Napreenko, M.G., Onyshchenko, V., Pérez-Haase, A., Pielech, R., Prokhorov, V., Rašomavičius, V., Rodríguez Rojo,M.P., Rūsiņa, S., Schrautzer, J., Šibík, J., Šilc, U., Škvorc, Ž., Smagin, V.A., Stančić, Z., Stanisci, A., Tikhonova, E., Tonteri, T., Uogintas, D., Valachovič, M., Vassilev, K., Vynokurov, D., Willner, W., Yamalov, S., Evans, D., Palitzsch, Lund, M., Spyropoulou, R., Tryfon, E., & Schaminée, J.H.J. (2020). EUNIS Habitat Classification: expert system, characteristic species combinations and distribution maps of European habitats. Applied Vegetation Science, 23, 648–675. https://doi.org/10.1111/avsc.12519.
]Search in Google Scholar
[
Chytrý, M., Tichý, L., Holt, J., & Botta-Dukát, Z. (2002). Determination of diagnostic species with statistical fidelity measures. Journal of Vegetation Science, 13, 79–90.
]Search in Google Scholar
[
Coldea, G. (ed.), Indreica, A. & Oprea, A. (2015). Les associations végétales de Roumanie. V. 3. Les associations forestiéres et arbustives. Presa Universitară Clujeană & Accent, Cluj-Napoca, 282 pp.
]Search in Google Scholar
[
Convention on Biological Diversity Decision 93/626/EEC 1992.
]Search in Google Scholar
[
Davies, C.E., Moss, D., & Hill, M.O. (2004). EUNIS habitat classification Revised 2004. Report to the European Topic Centrre on Nature Protection and Biodiversity. European Environment Agency, Copenhagen.
]Search in Google Scholar
[
Delipavlov, D., Cheshmedzhiev, I., Popova, M., Terziiski, D., & Kovachev, I. (2011). Opredelitel na rasteniata v Bulgaria [Determination Handbook of the plants in Bulgaria]. Second edition. Academic Publishing House of the Agricultural University, Plovdiv. [in Bulgarian]
]Search in Google Scholar
[
Dilinska, T. (2013). Geology and geomorphology. In: Stefanov, A. (Ed.), Manegement Plan for the National Park “Central Balkan” 2016–2025 Project № DIR-593212-1-8, 34. [in Bulgarian]
]Search in Google Scholar
[
Directive 92/43/EEC. (1992). Council Directive 92/43/EEC of 21 May 1992 on the Conservation of Natural Habitats and of Wild Fauna and Flora. – OJ L 206, 22.07.1992: 7–50.
]Search in Google Scholar
[
Douda, J., Boublik, K., Slezák, M., Biurrun, I., Nociar, J., Havrdová, A., Doudová, J., Aćić, S., Brisse, H., Brunet, J., Chytrý, M., Claessens H., Csiky, J., Didukh, Y., Dimopoulos, P., Dullinger, S., Fitz Patrick, Ú., Guisan, A., Horchler, P. J., Hrivnák, R., Jandt, U., Kącki, Z., Kevey, B., Landuci, F., Lecomte, H., Lenoir, J., Paal, J., Paternoster, D., Pauli, H., Pielech, R., Rodwell, J. S., Roelandt, B., Svenning, J. C., Šibík, J., Šilc, U., Škvorc, Ž., Tsiripidis, I., Tzonev, R. T., Wohlgemuth, T., & Zimmermann, N. E. (2016). Vegetation classification and biogeography of European floodplain forests and alder carrs. Applied Vegetation Science, 19, 147–163. https://doi.org/10.1111/avsc.12201
]Search in Google Scholar
[
Dragolov, P. (Ed.) (2013). Forests Inventory in National Park “Central Balkan”. Project “Central Balkan – Park For All”, DIR 5113325-12-109. [in Bulgarian]
]Search in Google Scholar
[
Ellenberg, H., Weber, H., Düll, R., Wirth, W., Werner, W., & Paulissen, D. (1992). Zeigerwerte von Pflanzen in Mitteleuropa. Ed. 2. Scripta Geobotanica, 18, 1–258.
]Search in Google Scholar
[
ENVI 5.2/ Exelis IDL 8.4, 28.09.2014, Exelis Visual Information Solutions, www.exelisvis.com.
]Search in Google Scholar
[
Euro+Med (2006–2020). Euro+Med. Available at: http://www.europlusmed.org [Accessed 15 February 2020].
]Search in Google Scholar
[
Everitt, B.S. (1977). The analysis of contingency tables. London: Chapman & all., London.
]Search in Google Scholar
[
Hays, W.L. (1988). Statistics (4th ed.). New York: CBS College Publishing.
]Search in Google Scholar
[
Hill, M., Roy, D., Mountford J., & Bunce, R. (2000). Extending Ellenberg’s indicator values to a new area: An algorithmic approach. Journal of Applied Ecology, 37(1), 3–15. https://doi.org/10.1046/j.1365-2664.2000.00466.x
]Search in Google Scholar
[
Horvat, I., Glavac, V., & Ellenberg, H. (1974). Vegetation Sudosteuropas. G. Verlag, Stuttgart, 768 pp.
]Search in Google Scholar
[
Kalníková, V., Chytrý, K., Biţa-Nicolae, C., Bracco, F., Font, X., Iakushenko, D., Kącki, Z., Kudrnovsky, H., Landucci, F., Lustyk, P., Milanović, Đ., Šibík, J., Šilc, U., Uziębło, A.K., Villani, M., & Chytrý, M. (2021). Vegetation of the European mountain river gravel bars: A formalized classification. Applied Vegetation Science, 24: e12542. https://doi.org/10.1111/avsc.12542
]Search in Google Scholar
[
Kavrakova, V., Dimitrov, M., Dimova, D., Tsonev, R., Belev, T.& Rakovska, R. (Eds.) (2009). Guidance for identifying habitats of European importance in Bulgaria. Second revised edition. Sofia, WWF– DCP and Fed “Green. Balkans”, 131 pp. [in Bulgarian]
]Search in Google Scholar
[
Kendall, M.G. (1975). Rank Correlation Methods. 4th Edition, Charles Griffin, London.
]Search in Google Scholar
[
Kent, M., & Coker, P. (1992). Vegetation description and analysis. A practical approach. John Wiley & Sons.
]Search in Google Scholar
[
Knapp, R. (1984). Sample (relevè) areas (distribution, homogeneity, size, shape) and plot-less sampling. In: Knapp, R. (ed.), Handbook Veget. Sci. 4: 101–119. Junk, The Hague.
]Search in Google Scholar
[
Kochev, H. (1969). Forest phytocoenoses in the valley of Cherni Osam River (Central Balkan mountain range). Bull. lnst. Bot. Sofia, 19: 9–62. [in Bulgarian]
]Search in Google Scholar
[
Kojić, M., Popović, R., & Karadžić, B. (1998). Sintaksonomski pregled vegetacije Srbije. Beograd, Inst. za biol. istraž. “S. Stanković”: 130–141.
]Search in Google Scholar
[
Kroiher, F., Müller-Kroehling, S., Schmitz, F., & Sukopp, U. (2017). Methode zur Erfassung undBewertung der FFH-Waldlebensraumtypen im Rahmen der dritten Bundeswaldinventur (BWI-2012). Thünen Working Paper 69a, 67 pp.
]Search in Google Scholar
[
Maarel, E. (1979). Transformation of cover-abundance in phytosociology and its effects on community similarity. Vegetatio, 39(2), 97–114.
]Search in Google Scholar
[
Marin, S. (Ed.) (2007). Project Creation of the network of Natura 2000 protected areas in Bulgaria, 2005–2007, Green Balkans. [in Bulgarian]
]Search in Google Scholar
[
Matevski, V., Čarni, A., Avramoski, O., Juvan, N., Kostadinovski, M., Košir P., Marinšek, A., Paušič, A., & Šilc, U. (2011). Forest vegetation of the Galičica mountain range in Macedonia. ZRC SAZU, Biološki inštitut Jovana Hadžija & Makedonska akademija na naukite i umetnostite, Ljubljana, 200 pp.
]Search in Google Scholar
[
Meshinev, T., Apostolova, I., Kachaunova, E., Velchev, V., & Bondev, I. (2000). Flora and plant communities. – In: Meshinev, T., & Popov, A. (Eds), High mountains treeless zone of the Central Balkan National Park. Biological diversity and problems of its conservation. Pensoft, Sofia. [in Bulgarian]
]Search in Google Scholar
[
Meusel, H., & Jäger, E. (1992). Vergleichende Chorologie der zentraleuropäischen Flora. Karten. Bd. 3. Jena [u. a.] (G. Fischer), 689 pp.
]Search in Google Scholar
[
Michalik, S. (1990). Plant communities in the Boatin biosphere reserve on the northeren slopes of Stara Planina Mts (Central Bulgaria). Ochrony przyrody, 47, 9–36.
]Search in Google Scholar
[
Michalik, S. (1992). The upper beech forest line in the Steneto Biosphere Reserve on the northern slopes of the Stara Planina Mts. (Central Bulgaria). Acta Soc. Bot. Pol., 61, 273–280.
]Search in Google Scholar
[
Michalik, S. (1993). Badania geobotaniczne i ekologiczne w gorach Starej Planiny (Bulgaria). Wiadomosci Botaniczne, 37(3/4), 73–75.
]Search in Google Scholar
[
Mirchev, S. (2013). Climat. In: Stefanov, A. (Ed.), Manegement Plan for the National Park “Central Balkan” 2016–2025 Project № DIR-593212-1-8, 31–33, [in Bulgarian]
]Search in Google Scholar
[
Mucina, L., Bültmann, H., Dierßen, K., Theurillat, J.-P., Raus, T., Čarni, A., Šumberová, K., Willner, W., Dengler, J., Gavilán García, R., Chytrý, M., Hájek, M., Di Pietro, R., Iakushenko, D., Pallas, J., Daniëls, F. J. A., Bergmeier, E., Santos Guerra, A., Ermakov, N., Valachovič, M., Schaminée, J. H. J., Lysenko, T., Didukh, J.P., Pignatti, S., Rodwell, J. S., Capelo, J., Weber, H. E., Solomeshch, A., Dimopoulos, P., Aguiar, C., Freitag, H., Hennekens, S.M., & Tichý, L. (2016). Vegetation of Europe Hierarchical floristic classification system of vascular plant, bryophyte, lichen, and algal communities. Applied Vegetation Science, 19, 3–264. https://doi.org/10.1111/avsc.12257
]Search in Google Scholar
[
Nedyalkov, N. (Ed.) (2013). Mapping and determining the conservation status of natural habitats and species – phase I. Project DIR-59318-1-2 OPE 2007-2013.
]Search in Google Scholar
[
Neykova, G., Pachedjieva, K., & Petrova, G. (2019). Habitats and flora in protected sites “Preobrazhenski monastery” and “Derventa”, north-central Bulgaria. Annual of Sofia University “St. Kliment Ohridski”, 104, 114–128.
]Search in Google Scholar
[
Nikolov, I., & Dimitrov, M. (2015). Boreo-montane forest phytocoe-noses in Central Stara Planina Mts. Forest review (Skopje), 46, 1–95.
]Search in Google Scholar
[
Pachedjieva, K. (2012). Phytocoenological characteristic of Kamnenshtica Reserve and neigbouring territories, Central Stara Planina. Ph.D. Thesis. Biol. Fak., Sofia Univ. St. Kliment Ohridski, Sofia. [in Bulgarian]
]Search in Google Scholar
[
Penev, N., & Georgiev, A. (1958). Die Peuce (Rumelische) Kiefer im Zentralbalkangebirge. Izv. Bot. Inst. (Sofia), 11, 49–68.
]Search in Google Scholar
[
Petrova, R. (2013). Soils. In: Stefanov, A. (Ed.), Manegement Plan for the National Park “Central Balkan” 2016–2025 Project № DIR-593212-1-8, 37–39. [in Bulgarian]
]Search in Google Scholar
[
Petrova, G., & Tzonev, R. (2020). Classification of the forest vegetation of Etropolska Stara Planina Mt. in Bulgaria. Forestry ideas, 26(1), 132–152.
]Search in Google Scholar
[
Rodwell, J.S., Evans, D., & Schaminée, J.H.J. (2018). Phytosociological relationships in European Union policy-related habitat classifications. Rendiconti Lincei, Scienze Fisiche e Naturali, 29, 237–249. https://doi.org/10.1007/s12210-018-0690-y.
]Search in Google Scholar
[
Roleček, J., Tichý, L. Zelený, D., & Chytrý, M., (2009). Modified TWINSPAN classification in which the hierarchy respect cluster heterogenety. Journal of Vegetation Science, 20, 596–602.
]Search in Google Scholar
[
Rosati, L., Marignani, M., & Blasi, C. (2008). A gap analysis comparing Natura 2000 vs National Protected Area network with potential natural vegetation. Community Ecology 9(2): 147–154.
]Search in Google Scholar
[
Roussakova, R., & Dimitrov, M. (2005). Caractéristiques phytosociologiques des forêts à Picea abies et Abies alba de la montagne de Rila (Bulgarie). Acta Botanica Gallica, 152(4), 563–571.
]Search in Google Scholar
[
Sarika, M, Bazos, I., Zervou, S., & Christopoulou, A. (2015). Flora and vegetation of the European-network ‘Natura 2000’ habitats of Naxos island (GR 4220014) and of nearby islets Mikres Kyklades (GR 4220013), central Aegean (Greece). Plant Sociology, 52(2), 3–56.
]Search in Google Scholar
[
Sarika, M.A., Christopoulou, A.N., Zervou, S.D., & Zikos, A.C. (2018). Vegetation units of wetland and terrestrial habitats: the case study of Spercheios River and Maliakos Gulf (Sterea Ellas, Greece), a Natura 2000 Site. Hacquetia, 17(2), 189–220. https://doi.org/10.1515/hacq-2017-0017
]Search in Google Scholar
[
Schaminée, J.H.J., Chytrý, M., Hennekens, S.M., Janssen, J.A.M., Knollová, I., Rodwell, J.S. et al., (2018). Updated crosswalk of the revised EUNIS Habitat Classification with the European Vegetation Classification and Indicator Species for the EUNIS Grassland, Shrubland and Forest Types. Report to the European Environment Agency. Wageningen: Wageningen Environmental Research.
]Search in Google Scholar
[
Sokal, R.R., & Rohlf, F.J. (1995). Biometry. 3rd edition. W. H. Freeman and Company, New York.
]Search in Google Scholar
[
Spribille, T., Stroh, H.G., & Triepke, F.J. (2001). Are habitat types compatible with floristically-derived associations? Journal of Vegetation Science, 12, 791–796.
]Search in Google Scholar
[
StatSoft, Inc. (2011). STATISTICA (data analysis software system), version 10.0. www.statsoft.com
]Search in Google Scholar
[
Stefanov, A. (Ed.) (2013). Manegement Plan for the National Park “Central Balkan” 2016–2025 Project № DIR-593212-1-8, 208 pp. [in Bulgarian]
]Search in Google Scholar
[
Sugarev, I., & Stanev, S. (2013). Characteristics of forest vegetation. In: Stefanov, A. (Ed.), Manegement Plan for the National Park “Central Balkan” 2016–2025. Project № DIR-593212-1-8, 40–43. [in Bulgarian]
]Search in Google Scholar
[
Tichý, L. (2002). JUICE, software for vegetation classification. Journal of Vegetation Science, 13, 451–453.
]Search in Google Scholar
[
Tichý, L., Axmanová, I., Dengler, J., Guarino, R., Jansen, F.,Midolo, G., Nobis, M.P., Van Meerbeek, K., Aćić, S., Attorre, F., Bergmeier, E., Biurrun, I., Bonari, G., Bruelheide, H., Campos, J.A., Čarni, A., Chiarucci, A., Ćuk, M., Ćušterevska, R., Didukh, Y.,Dítě, D., Dítě, Z., Dziuba, T., Fanelli, G., Fernández-Pascual, E., Garbolino, E., Gavilán, R.G., Gégout, J.-C., Graf, U., Güler, B., Hájek, M., Hennekens, S.M., Jandt, U., Jašková, A., Jiménez-Alfaro, B., Julve, P., Kambach, S., Karger, D.N., Karrer, G., Kavgacı, A., Knollová, I., Kuzemko, A., Küzmič, F., Landucci, F., Lengyel, A., Lenoir, J., Marcenò, C., Moeslund, J.E., Novák, P., Pérez-Haase, A., Peterka, T., Pielech, R., Pignatti, A., Rašomavičius, V., Rūsiņa, S., Saatkamp, A., Šilc, U., Škvorc, Ž., Theurillat, J.-P., Wohlgemuth, T. & Chytrý, M. (2023). Ellenberg-type indicator values for European vascular plant species. Journal of Vegetation Science, 34, e13168. https://doi.org/10.1111/jvs.13168
]Search in Google Scholar
[
Tichý, L., Holt, J., & Nejezchlebová, M. (2010). JUICE program for management, analysis and classification of ecological data. 2nd edition of the Program Manual, 28 pp.
]Search in Google Scholar
[
Tzonev, R., Dimitrov, M., & Roussakova, V. (2009). Syntaxa according to the Braun-Blanquet approach in Bulgaria. Phytologia Balcanica, 15(2), 209–233.
]Search in Google Scholar
[
Tzonev, R., Dimitrov, M., Chytry, M., Roussakova, V., Dimova, D., Gussev, C., Pavlov, D., Vulchev, V., Vitkova, A., Gogushev, G., Nikolov, I., Borisova, D., & Ganeva, A. (2006). Beech forests communities in Bulgaria. Phytocoenologia, 36(2), 247–279.
]Search in Google Scholar
[
Tzonev, R., Dimitrov, M., Gussev, Ch., Gogushev, G., Pachedjieva, K., Apostolova-Stoyanova, N., Nikolov, I. & Alexandrova, A. (2019). Phytosociological classification of the thermophilous oak forests in Bulgaria: new interpretations and gaps in knowledge. Phytocoenologia, 49(4), 369–391.
]Search in Google Scholar
[
Tzonev, R., Dimitrov, M., Gussev, Ch., Vulchev, V., & Nikolov, I. (2017). Classification of the relict forest communities of Palla’s Black Pine (Pinus nigra subsp. pallasiana) in Bulgaria. Hacquetia, 17(2), 125–161. https://doi.org/10.1515/hacq-2017-0011
]Search in Google Scholar
[
Tzonev, R., Gussev, Ch., Dimitrov, M., Russakova, V., Lazarova, K., Dimova, D., Belev, T. & Marin, S. (2012). GIS modeling of natural habitats from Annex I of Directive 92/43/EEC in Bulgaria – methodology and applying in the establishment and management of the protected sites from NATURA 2000 network. In: A. Petrova (Ed.), Proceedings of the 7-th Nat. Conf. of Bot., Univ of. Sofia, June 2011, Press House US, Sofia, 417–436, [in Bulgarian].
]Search in Google Scholar
[
Tzonev, R., Gussev, Ch., Russakova, V. & Dimitrov, M. (2013). Ecosystems and biotopes. Classification of vegetation. In: Stefanov, A. (Ed.), Manegement Plan for the National Park “Central Balkan” 2016–2025 Project № DIR-593212-1-8, (2016), 43–46, [in Bulgarian].)
]Search in Google Scholar
[
Tzonev, R., Gussev, Ch., Russakova, V. & Dimitrov, M. (2015). Concept and methodology. In: Biserkov, V., Gussev, Ch., Popov, V., Hibaum, G., Roussakova, V., Pandurski, I., Uzunov, J., Dimitrov, M., Tzonev, R. & Tzoneva, S. (Eds.), Red Data Book of the Republic of Bulgaria. Volume 3. Natural habitats, IBEI – BAS & MOEW, Sofia: 15–19.
]Search in Google Scholar
[
Vassilev, K. & Gavrilova, A. (2015). Flora, habitats and vegetation of Chamdzha managed reserve, Central Balkan Range. Forest review (Skopje), 46, 74–87.
]Search in Google Scholar
[
Vukelić, J., Racić, D., Baričević, D., & Medak, J. (2007). Forest of silver fir and hop hornbeam (Ostryo-Abietetum/Fukarek 1963/Trinajstić 1983) in Croatia with special reference to the hinterland of Vinodol. Periodicum Biologorum, 109(1), 77–86.
]Search in Google Scholar
[
Westhoff, V., & van der Maarel, E. (1978). The Braun-Blanquet approach. In: Whittaker, R.H. (Ed.), Classification of Plant Communities. Junk, the Hague, 287–399.
]Search in Google Scholar
[
Willner, W., Jiménez-Alfaro, B., Agrillo, E., Biurrun, I., Campos, J.A., Čarni, A., Casella, L., Csiky, J., Ćušterevska, R., Didukh, Y.P., Ewald, J., Jandt, U., Jansen, F., Kącki, Z., Kavgacı, A., Lenoir, J., Marinšek, A., Onyshchenko, V., Rodwell, J.S., Schaminée, J.H., Šibík, J., Škvorc, Ž., Svenning, J.C., Tsiripidis, I., Turtureanu, P.D., Tzonev, R., Vassilev, K., Venanzoni, R., Wohlgemuth, T., & Chytrý, M. (2017). Classification of European beech forests: a Gordian Knot? Applied Vegetation Science, 20, 494–512.
]Search in Google Scholar
[
Xystrakis, F., Chasapis, M., Eleftheriadou, E., Samaras, D., & Theodoropoulos, K. (2022). The optimization of typical species inventory of habitat types of a NATURA 2000 site using a phytosociological approach. Plant Sociology, 59(2), 1–16.
]Search in Google Scholar