@article{10_14708_wm_v30i02_4525,
     author = {. Redaktor},
     title = {Zadania},
     journal = {Wiadomo\'sci Matematyczne},
     pages = { 271},
     publisher = {mathdoc},
     volume = {30},
     number = {02},
     year = {1994},
     doi = {10.14708/wm.v30i02.4525},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/wm.v30i02.4525/}
}