@misc{WM_1908_12_Dodatek_2_a0,
     title = {Posiedzenia},
     journal = {Wiadomo\'sci Matematyczne},
     pages = {65--70},
     year = {1908},
     volume = {12},
     number = {Dodatek_2},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/item/WM_1908_12_Dodatek_2_a0/}
}