[Barkman, J., Doing, H. & Segal, S. 1964: Kritische Bemerkungen und Vorschlage zur quantitativen Vegetationsanalyse. Acta Botanica Neerlandica 13: 394-419.10.1111/j.1438-8677.1964.tb00164.x]Search in Google Scholar
[Berg, C., Dengler, J., Abdank, A. & Isermann, M. (eds.) 2004: Die Pflanzengesellschaften Mecklenburg- Vorpommerns und ihre Gefahrdung.Textband. Weissdorn, Jena, 606 pp. ]Search in Google Scholar
[Bergmeier, E., Konstantinou, M., Tsiripidis, I. & Sykora, K. V. 2009: Plant communities on metalliferous soils in northern Greece. Phytocoenologia 39: 411-438.10.1127/0340-269X/2009/0039-0411]Search in Google Scholar
[Boch, S. & Dengler, J. 2006: Floristische und okologische Charakterisierung sowie Phytodiversitat der Trockenrasen auf der Insel Saaremaa (Estland). Arbeiten aus dem Institut fur Landschaftsokologie Munster 15: 55-71.10.7809/thesis.diplom.006]Search in Google Scholar
[Borhidi, A., Kevey, B. & Varga, Z. 2001: Checklist of the higher syntaxa of Hungary. Annals of Botany (N. S.) 1: 159-166.]Search in Google Scholar
[Braun-Blanquet, J. 1964: Pflanzensoziologie.Grundzuge der Vegetationskunde. 3rd. ed.Springer, Wien, 865 pp.10.1007/978-3-7091-8110-2]Search in Google Scholar
[Bulgarian Academy of Sciences. 2011: Red Data Book of the Republic of Bulgaria-Digital edition.Published on the Internet: http://e-ecodb.bas.bg/rdb/en/vol3 [accessed 31/10/2013].]Search in Google Scholar
[Chytry, M. & Otypkova, Z. 2003: Plot sizes used for phytosociological sampling of European vegetation. Journal of Vegetation Science 14: 563-570.10.1111/j.1654-1103.2003.tb02183.x]Search in Google Scholar
[Chytry, M. (ed.) 2007: Vegetation of the Czech Republic-1. Grassland and heathland vegetation [in Czech, with English summaries]. Academia, Praha, 526 pp.]Search in Google Scholar
[Dafis, S., Papastergiadou, E., Lazaridou, T. & Tsiafouli, M. 2001: Technikos Odigos Anagnorisis, Perigrafis kai Chartografisis Tipon Oikotopon tis Elladas (Technical guide for identification, description and mapping of habitat types of Greece). Greek Wetland and Biotope Centre (EKBY), Thessaloniki, 908 pp.]Search in Google Scholar
[Demolder, H., Delescaille, L. M., Van Landuyt, W., Wouters J., Van Looy, K. & Paelinckx, D. 2008: Conservation status of the Natura 2000 habitat 6120 (Xeric sand calcareous grasslands) for the Belgian Atlantic region. In: Paelinckx D., Van Landuyt W. & De Bruyn L. (eds.): Conservation status of the Natura 2000 habitats and species. Report of the Research Institute for Nature and Forest, INBO.R. 2008. 15, Brussels, pp. 1-4.]Search in Google Scholar
[Dengler, J. 2000: Synsystematische Stellung und Gliederung deruckermarkischen Sandtrockenrasen.Berichte der Naturwissenschaftlichen Gesellschaft Bayreuth 24: 302-306.]Search in Google Scholar
[Dengler, J. 2001: Erstellung und Interpretation synchorologischer Karten am Beispiel der Klasse Koelerio-Corynephoretea. Berichte der Reinhold-Tuxen-Gesellschaft 13: 223-228.]Search in Google Scholar
[Dengler, J. 2003: Entwicklung und Bewertung neuer Ansatze in der Pflanzensoziologie unter besonderer Berucksichtigung der Vegetationsklassifikation.Archiv Naturwissenschaftlicher Dissertationen 14: 1-297.]Search in Google Scholar
[Dengler, J., Berg, C., Eisenberg, M., Isermann, M., Jansen, F., Koska, I., Lobel, S., Manthey, M., Pazolt, J., Spangenberg, A., Timmermann, T. & Wollert, H. 2003: New descriptions and typifications of syntaxa within the project “Plant communities of Mecklenburg- Vorpommern and their vulnerability”. Part I. Feddes Repertorium 114: 587-631.10.1002/fedr.200311017]Search in Google Scholar
[Dengler, J., Jansen, F., Glockler, F., Peet, R. K., De Caceres, M., Chytry, M., Ewald, J., Oldeland, J., Lopez-Gonzalez, G., Finckh, M., Mucina, L., Rodwell, J. S., Schaminee, J. H. J. & Spencer, N. 2011: The Global Index of Vegetation- Plot Databases (GIVD): a new resource for vegetation science. Journal of Vegetation Science 22: 582-597.10.1111/j.1654-1103.2011.01265.x]Search in Google Scholar
[Dierschke H. 1994: Pflanzensoziologie-Grundlagen und Methoden. Ulmer, Stuttgart, 683 pp.]Search in Google Scholar
[Dimopoulos, P., Raus, T., Bergmeier E., Constantinidis, T., Iatrou G., Kokkini, S., Strid, A. & Tzanoudakis, D. 2013: Vascular Plants of Greece. An annotated checklist. Botanic Garden and Botanical Museum Berlin-Dahlem & Hellenic Botanical Society, Berlin & Athens, 372 pp.]Search in Google Scholar
[Doniţă, N., Popescu, A., Paucă-Comănescu, M., Mihăilescu, S. & Biriş, I. A. 2005: Habitele din Romania. Edit. Tehnică Silvică, Bucureşti, 500 pp.]Search in Google Scholar
[Ellenberg, H. 1988: Vegetation Ecology of Central Europe, 4th ed. University of Cambridge, Cambridge, 705 pp.]Search in Google Scholar
[European Commission. 2013: Interpretation Manual of European Union Habitats. European Union, Bruxelles, 146 pp.]Search in Google Scholar
[Faust, C., Suss, K., Storm, C. & Schwabe, A. 2011: Threatened inland sand vegetation in the temperate zone under different types of abiotic and biotic disturbances during a tenyear period. Flora 206: 611-621.10.1016/j.flora.2010.09.013]Search in Google Scholar
[Fotiadis, G., Angelova, N., Nikolov, N., Melovski, Lj., Karadelev, M., Avukatov, V. & Nikolov, L. 2012: Conservation Action Plan for Grecian Juniper Forests in the Prespa Lakes Watershed (Final Report). UNDP/GEF project “Integrated ecosystem management in the Prespa lakes basin”, F. Y. R. of Macedonia, Skopje, 46 pp.]Search in Google Scholar
[Hill, M. O. 1979: TWINSPAN - a FORTRAN program for arranging multivariate data in an ordered two-way table by classification of the individuals and the attributes. Ecology & Systematics, Cornell University, Ithaca, NY, 45 pp.]Search in Google Scholar
[Hollis, G. E. & Stevenson, A. C. 1997: The physical basis of the lake Mikri Prespa systems: geology, climate, hydrology and water quality.Hydrobiologia 351: 1-19.]Search in Google Scholar
[I. G. M. E. [Institute of Geology and Mineralogy Research] 1983: Geologikos Chartis tis Elladas (Geological Map of Greece), scale 1 : 500.000. Athens.]Search in Google Scholar
[Kelemen, J. & Warner, P. 1996: Nature Conservation Management of Grasslands in Hungary.Summary. Conservation Handbook Series of the Hungarian National Authority for Nature Conservation, Budapest, 39 pp.]Search in Google Scholar
[Kent, M. & Coker, P. 1992: Vegetation description and analysis. A practical approach. John Wiley, London, 336 pp.]Search in Google Scholar
[Knapp, R. 1984: Sample (releve) areas (distribution, homogeneity, size, shape) and plot-less sampling. In: Knapp, R. (ed.), Handbook of Vegetation Science 4. Junk, The Hague, pp. 101-119.]Search in Google Scholar
[Kuzemko, A. 2009: Dry grasslands on sandy soils in the forest and forest-steppe zones of the plains part of Ukraine: present state of syntaxonomy.Tuexenia 29: 369-390.]Search in Google Scholar
[Laime, B. & Tjarve, D. 2009: Grey dune plant communities (Koelerio-Corynephoretea) on the Baltic coast in Latvia. Tuexenia 29: 409-435.]Search in Google Scholar
[Lobel, S. & Dengler, J. 2007: Dry grasslands communities on southern Oland: phytosociology, ecology, and diversity. Acta Phytogeographica Suecica 88: 13-31.]Search in Google Scholar
[Matuszkiewicz, W. 2008: Przewodnik do oznaczania zbiorowisk roślinnych Polski. Wydawnictwo Naukowe PWN, Warszawa, 537 pp.]Search in Google Scholar
[Metzger, M. J., Shkaruba, A. D., Jongman, R. H. G. & Bunce, R. G. H. 2012: Descriptions of the European Environmental Zones and Strata.Alterra Report 2281. Wageningen, 154 pp.]Search in Google Scholar
[Molnar Z. (eds.) 2003. Dry sand vegetation of the Kiskunsag. Termeszet BUVAR Alapitvany Kiado, Budapest, 30 pp.]Search in Google Scholar
[Mucina, L., Grabherr, G. & Ellmauer, T. (eds.) 1993: Die Pflanzengesellschaften Osterreichs.Teil I: Anthropogene Vegetation. Fischer, Jena, 578 pp.]Search in Google Scholar
[Mucina, L. 1997: Conspectus of classes of European vegetation. Folia Geobotanica et Phytotaxonomica 32: 117-172.10.1007/BF02803738]Search in Google Scholar
[Odman, A. M., Martensson, L.-M., Sjoholm, C. & Olsson, P. A. 2011: Immediate responses in soil chemistry, vegetation and ground beetles to soil perturbation when implemented as a restoration measure in decalcified sandy grassland. Biodiversity and Conservation 20: 3039-3058.]Search in Google Scholar
[Onodi, G., Kertesz, M. & Botta-Dukat, Z. 2006: Effects of simulated grazing on open perennial sand grassland. Community Ecology 7: 133-141.10.1556/ComEc.7.2006.2.1]Search in Google Scholar
[Parolly, G. 2003: Towards common standards in phytosociological papers submitted to the Turkish Journal of Botany: A Letter from the Editor. Turkish Journal of Botany 27: 163-165.]Search in Google Scholar
[Pedashenko, H., Apostolova, I., Boch, S., Ganeva, A., Janišova, M., Sopotlieva, D., Todorova, S., Unal, A., Vassilev, K., Velev, N. & Dengler, J. 2013: Dry grasslands of NW Bulgarian mountains: first insights into diversity, ecology and syntaxonomy. Tuexenia 33: 309-346.]Search in Google Scholar
[Quezel, P. 1969: La vegetation du massif de Bela Voda (Macedoine Nord-Occidentale). Biologia Gallo-Hellenica 2: 91-112.]Search in Google Scholar
[Ristevski, P. 2000: Climatic and Agroclimatic Characteristics in the Prespa Lake Basin. International Symposium-Sustainable Development of Prespa Region, Oteševo, pp. 212-223.]Search in Google Scholar
[Rodwell, J. S., Schaminee, J. H. J., Mucina, L., Pignatti, S., Dring, J. & Moss, D. 2002: The diversity of European vegetation-An overview of phytosociological alliances and their relationships to EUNIS habitats. Rapp. EC-LNV 2002 (054): National Reference Centre for Agriculture, Nature and Fisheries, Wageningen, 168 pp.]Search in Google Scholar
[Rūsiņa, S. 2005: Diagnostic species of mesophylous and xerophylous grassland plant communities in Latvia. Latvijas Universitates Raksti 685: 69-95.]Search in Google Scholar
[Schaminee, J. H. J., Stortelder, A. H. F., Weeda, E. J. (eds.) 1996: De Vegetatie von Nederland- Deel 3. Plantengemeenschappen van graslanden, zomen en droge heiden. Opulus, Uppsala, 360 pp.]Search in Google Scholar
[Šefferova Stanova, V., Vajda, Z. & Janak, M. 2008: Management of Natura 2000 habitats. 6260 *Pannonic sand steppes. European Commission, Bruxelles, 24 pp.]Search in Google Scholar
[Silva, J. P., Toland, J., Jones, W., Eldridge, J., Thorpe, E. & O’Hara, E. 2008: LIFE and Europe’s grasslands: Restoring a forgotten habitat.European Commission, 56 pp. ]Search in Google Scholar
[Stroh, M., Storm, C., Zehm, A. & Schwabe, A. 2002: Restorative grazing as a tool for directed succession with diaspore inoculation: the model of sand ecosystems. Phytocoenologia 32: 595-625.10.1127/0340-269X/2002/0032-0595]Search in Google Scholar
[Sundseth, K. 2009: Natura 2000 in the Pannonian Region. European Commission, 12 pp. ]Search in Google Scholar
[Ter Braak, C. J. F. & Šmilauer, P. 2002: CANOCO Reference Manual and CanoDraw for Windows User’s Guide: Software for Canonical Community Ordination (version 4.5). Microcomputer Power, Ithaca, 351 pp.]Search in Google Scholar
[Tichy, L. 2001: JUICE, software for vegetation classification. Journal of Vegetation Science 13: 451-453.]Search in Google Scholar
[Torok, K., Szili-Kovacz, T., Halassy, M., Toth, T., Hayek, Z., Paschke, M. W. & Wardell, L. J. 2000: Immobilization of soil nitrogen as a possible method for the restoration of sandy grassland. Applied Vegetation Science 3: 7-14.10.2307/1478913]Search in Google Scholar
[Tsiripidis, I., Bergmeier, E., Fotiadis, G. & Dimopoulos, P. 2009: A new algorithm for the determination of differential taxa. Journal of Vegetation Science 20: 233-240. van der Maarel, E. 1979: Transformation of cover- abundance values in phytosociology and its effect on community similarity. Vegetatio 39: 97-114.]Search in Google Scholar
[Vassilev, K., Stevanović Dajić, Z., Ćušterevska, R., Bergmeier, E. & Apostolova, I. 2012: Balkan Dry Grasslands Database. In: Dengler J., Oldeland J., Jansen F., Chytry M., Ewald J., Finckh M., Glockler F. Lopez-Gonzalez G, Peet R. K., Schaminee J. H. J., Vegetation databases for the 21st century. Biodiversity & Ecology 4: 330-330.]Search in Google Scholar
[Vicherek, J. 1972: Die Sandpflanzengesellschaften des unteren und mittleren Dnjeprstromgebietes (die Ukraine). Folia Geobotanica et Phytotaxonomica 7: 9-46.10.1007/BF02856380]Search in Google Scholar
[Vrahnakis, M., Fotiadis, G. & Kazoglou, Y. 2011: Katagrafi, Aksiologisi kai Geografiki Apotiposi ton Livadikon kai Dasikon Tipon Oikotopon ton Periochon tou Diktiou Phisi 2000: (Ethnikos Drymos Prespon - GR 1340001), Mt. Varnountas (Ori Varnountas - GR 1340003) kai periochon periks auton (Registration, Assessment and Geographical Representation of the Range and Forest Habitat Types of the Natura 2000 Sites Prespa National Park (Ethnikos Drymos Prespon - GR 1340001), Mt. Varnountas (Ori Varnountas - GR 1340003) and Adjusted Areas) - Final Report.TEI of Larissa, Society for the Protection of Prespa, 107 pp. + annexes.]Search in Google Scholar
[Zwaenepoel, A., T’Jollyn, F., Vandenbussche, V. & Hoffmann, M. 2002: Systematiek van natuurtypen voor Vlaanderen: 6.2 Graslanden, Droge graslanden. Verslag van het Instituut voor Natuurbehoud, Bruxelles, 21 pp. ]Search in Google Scholar