@article{10_14708_wm_v27i02_4215, author = {Redaktor}, title = {Kr\'otkie informacje}, journal = {Wiadomo\'sci Matematyczne}, pages = { 335--340}, publisher = {mathdoc}, volume = {27}, number = {02}, year = {1987}, doi = {10.14708/wm.v27i02.4215}, language = {pl}, url = {http://geodesic.mathdoc.fr/articles/10.14708/wm.v27i02.4215/} }