TY - GEN PB - Juliusz Schauder Center CY - ToruĊ„ L2 - http://kpbc.umk.pl/Content/22266 T1 - Topological Methods in Nonlinear Analysis, Vol. 14 no 1, (1999) UR - http://kpbc.umk.pl/dlibra/publication/edition/22266 ER -