@article{10_14708_wm_v28i02_4471,
     author = {. Redaktor},
     title = {Content},
     journal = {Wiadomo\'sci Matematyczne},
     pages = { 288},
     year = {1990},
     volume = {28},
     number = {02},
     doi = {10.14708/wm.v28i02.4471},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/wm.v28i02.4471/}
}