@misc{WM_1907_11_Supplement_2_a0,
     title = {Sprawozdania z posiedze\'n {Ko{\l}a} matematyczno-fizycznego w {Warszawie} {Rok} 1906/7},
     journal = {Wiadomo\'sci Matematyczne},
     pages = {65--72},
     publisher = {mathdoc},
     volume = {11},
     number = {Supplement_2},
     year = {1907},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/item/WM_1907_11_Supplement_2_a0/}
}