TY - GEN L1 - http://kpbc.umk.pl/Content/179989/PDF/Apiecionek_1982_WSK.pdf L2 - http://kpbc.umk.pl/Content/179989 T1 - Apiecionek Zofia UR - http://kpbc.umk.pl/dlibra/publication/edition/179989 ER -