@misc{WM_1904_8_1-2-3_a8,
     title = {Kronika},
     journal = {Wiadomo\'sci Matematyczne},
     pages = {140--145},
     year = {1904},
     volume = {8},
     number = {1-2-3},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/item/WM_1904_8_1-2-3_a8/}
}