@article{10_14708_wm_v27i02_4214,
     author = {Redaktor},
     title = {Zadania},
     journal = {Wiadomo\'sci Matematyczne},
     pages = { 334--335},
     year = {1987},
     volume = {27},
     number = {02},
     doi = {10.14708/wm.v27i02.4214},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/wm.v27i02.4214/}
}