@misc{WM_1899_3_5-6_a8,
     title = {Errata},
     journal = {Wiadomo\'sci Matematyczne},
     pages = {309},
     year = {1899},
     volume = {3},
     number = {5-6},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/item/WM_1899_3_5-6_a8/}
}