TY - GEN A1 - Jan Kowalski A1 - Janina Kowalska L1 - http://demo.dl.psnc.pl/Content/1635/PDF/Article-1.pdf L2 - http://demo.dl.psnc.pl/Content/1635 T1 - Magazyn u3 1 INiG-PIB UR - http://demo.dl.psnc.pl/dlibra/publication/edition/1635 ER -