@misc{WM_1905_9_1-2_a5,
     title = {O nauce o promieniowaniu {(Optyce)} {A.} {Witkowskiego}},
     journal = {Wiadomo\'sci Matematyczne},
     pages = {87--98},
     publisher = {mathdoc},
     volume = {9},
     number = {1-2},
     year = {1905},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/item/WM_1905_9_1-2_a5/}
}