@misc{WM_1902_6_4-5_a2,
     title = {Definicye w matematyce},
     journal = {Wiadomo\'sci Matematyczne},
     pages = {174--181},
     publisher = {mathdoc},
     volume = {6},
     number = {4-5},
     year = {1902},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/item/WM_1902_6_4-5_a2/}
}