@article{10_14708_wm_v12i1_2042,
     author = {P. S. Aleksandr\'ow},
     title = {List do prof. {K.} {Kuratowskiego}},
     journal = {Wiadomo\'sci Matematyczne},
     pages = { 59--61},
     publisher = {mathdoc},
     volume = {12},
     number = {1},
     year = {1969},
     doi = {10.14708/wm.v12i1.2042},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/wm.v12i1.2042/}
}