@misc{WM_1908_12_Dodatek_1_a1,
     title = {Ustawa {Ko{\l}a} matematyczno-fizycznego},
     journal = {Wiadomo\'sci Matematyczne},
     pages = {13--19},
     year = {1908},
     volume = {12},
     number = {Dodatek_1},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/item/WM_1908_12_Dodatek_1_a1/}
}