2026-03-07T00:56:16Z https://bc.ietu.pl/oai-pmh-repository.xml

oai:bc.ietu.pl:11988 2015-03-31T09:39:37Z dLibraDigitalLibrary:wydaw_ciagle dLibraDigitalLibrary dLibraDigitalLibrary:wydaw_ciagle:czasopisma:problemy_ekologii:2008:2008_4 dLibraDigitalLibrary:wydaw_ciagle:czasopisma:problemy_ekologii dLibraDigitalLibrary:wydaw_ciagle:czasopisma dLibraDigitalLibrary:wydaw_ciagle:czasopisma:problemy_ekologii:2008