[AOPK ČR (2014) Plán péče pro národní přírodní rezervaci Králický Sněžník a její ochranné pásmo na období 2014–2023. AOPK ČR, Olomouc, https://drusop.nature.cz/ost/archiv/plany_pece/index.php?frame&ID=25291]Search in Google Scholar
[AOPK ČR (2022). Aktualizace základního mapování biotopů. AOPK ČR, https://data.nature.cz/ds/21]Search in Google Scholar
[Barrio G., Alver B., Puigdefabregas J. & Diez C. (1997). Response of high mountain landscape to topographic variables: Cetral Pyrenees. – Landscape Ecology 12:95–115, https://doi.org/10.1007/BF02698210]Search in Google Scholar
[Husek V. (2017). Long-term changes of ruins` vegetation on the summit of the Králický Sněžník Mts. [bachelor’s thesis]. Department of Ecology and Environmental Sciences, Faculty of Science, Palacky University in Olomouc, 34 pp., in Czech.]Search in Google Scholar
[Chrtek J. (2004). Hieracium L. – jestřábník. – In: Slavík B., Štěpánková J. & Štěpánek J. (eds), Květena České republiky 7, p. 540–701, Academia, Praha.]Search in Google Scholar
[Chrtek J., Tonková M., Mráz P., Marhold K., Plačková I., Krahulcová A. & Kirschner J. ( 2007). Morphological and allozyme diversity in the Hieracium nigrescens group (Compositae) in the Sudety Mountains and the Western Carpathians. – Botanical Journal of the Linnean Society 153:287–300, https://academic.oup.com/ botlinnean/article/153/3/287/2420444?login=false]Search in Google Scholar
[Chytrý M., Kučera T., Kočí M., Grulich V. & Lustyk P. (eds) (2010). Katalog biotopů České republiky. Ed. 2. Agentura ochrany přírody a krajiny ČR, Praha.]Search in Google Scholar
[Dančák M. (2004). Ohrožení a ochrana vegetace ČR. Olomouc: Department of Botany, Faculty of Science. Palacky university Olomouc. http://www.botanika.upol.cz/atlasy/spolecenstva/index.html#_Toc90619951]Search in Google Scholar
[Fehrer J., Krak K. & Chrtek J. Jr. (2009). Intra-individual polymorphism in diploid and apomictic polyploid hawkweeds (Hieracium, Lactuceae, Asteraceae): disentangling phylogenetic signal, reticulation, and noise. – BMC Evolutionary Biology 9:239, https://doi.org/10.1186/1471-2148-9-239]Search in Google Scholar
[Formánek E. (1887). Květena Moravy a rakouského Slezska. Ed. 1. Eduard Formánek, Brno.]Search in Google Scholar
[Kaplan Z., Danihelka J., Chrtek J., Kirschner J., Kubát K., Štech M. & Štěpánek J. (eds). (2019). Klíč ke květeně České republiky [Key to the flora of the Czech Republic]. Ed. 2., Academia, Praha.]Search in Google Scholar
[Kocián J. & Chrtek J. (2017). Distribution of mountain hawkweeds (Hieracium s. str.) in the Hrubý Jeseník Mountains. – Acta Musei Silesiae 66:193–229, https://doi.org/10.1515/cszma-2017-0024]Search in Google Scholar
[Körner Ch. (1999). The alpine plant life. Ed. 1. Gustav Fischer Verlag, Heidelberg.]Search in Google Scholar
[Krahulec F. (2006). Species of vascular plants endemic to the Krkonoše Mts (Western Sudetes). – Preslia 78: 503–516.]Search in Google Scholar
[Oborny A. (1906). Die Hieracien Mähren und österr. Schlesien. II. Untergattung Euhieracium Torr. et Gray. Verh. Naturforsch. Ver. Brünn. 44: 1–79.]Search in Google Scholar
[Oksanen J., Blanchet F. G., Friendly M., Kindt R., Legendre P., McGlinn D., Minchin P. R., O‘Hara R. B., Simpson G. L., Solymos P., Stevens H. H., Szoecs E., Wagner H. (2020). vegan: Community Ecology Package. R package version 2.5-7. https://CRAN.R-project.org/package=vegan]Search in Google Scholar
[Pladias (2023). Database of the Czech Flora and Vegetation. www.pladias.cz]Search in Google Scholar
[Szeląg Z. (2003). Zagrożone gatunki flory naczyniowej Dolnego Śląska. Instytut Biologii Roślin, Uniwersytet Wrocławski. Górskie gatunki rodzaju Hieracium w Sudetach. Przemiany i zagrozenie. p. 197–215.]Search in Google Scholar
[Szeląg Z. (2000). Vascular plants of the Śnieżnik Massif and the Góry Bialskie Mts. Fragm. Florist. Geobot., Ser. Polon., Suppl. 3: 3–255 (in Polish with English summary).]Search in Google Scholar
[Treml V. & Banaš M. (2000). Alpine timberline in the High Sudeties. – Acta Universitatis Carolinae Geographica 35:83–95.]Search in Google Scholar
[Wickham H. (2016). ggplot2: Elegant Graphics for Data Analysis. – Springer, Verlag New York.]Search in Google Scholar