Hereźniak, J. 2002. Regional list of extinct and threatened vascular plants of the northern pa rt of the Silesia-Cracow Uplands. Acta Universitatis Lodziensis. Folia Biologica et Oecologica. 1, (Jan. 2002), 39–64. DOI:https://doi.org/10.18778/1730-2366.01.02.