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
Rare Earth Elements of Orzeskie Beds of South-West Part Upper Silesian Coal Basin (Poland) / Pierwiastki Ziem Rzadkich Z Pokładów Węgla Warstw Orzeskich Południowo-Zachodniej Części Gzw (Polska)