@misc{Matuszkiewicz_Jan_Marek_(1946–_)_Geobotaniczna_1993, author={Matuszkiewicz, Jan Marek (1946– )}, editor={Polish Academy of Sciences. Committee for Nature Conservation}, copyright={Creative Commons Attribution BY 3.0 PL license}, address={Kraków}, howpublished={online}, year={1993}, publisher={Institute of Nature Conservation of the Polish Academy of Sciences}, language={pol}, title={Geobotaniczna analiza potrzeb i możliwości działań dla ochrony roślinności i krajobrazu doliny środkowej Wisły}, title={Geobotanical view of the needs and possibilities for the conservation actions in the middle course of the Vistula river}, type={Text}, URL={http://www.rcin.org.pl/Content/117122/PDF/KR038_134863_r1993_OchrPiS-Matuszkiewicz-61-68.pdf}, keywords={river valleys}, }