As of 1 April 2026, the PSJD database will become an archive and will no longer accept new data. Current publications from Polish scientific journals are available through the Library of Science: https://bibliotekanauki.pl
Directions of changes in the macrophyte structure of two depression reservoirs in Łęczna-Włodawa Lakeland Kierunki zmian struktury makrofitów dwóch zbiorników depresyjnych na Pojezierzu Łęczyńsko-Włodawskim