@article{PMF_1913_24_1_a1,
     author = {Godlewski, Tadeusz},
     title = {O promieniotw\'orczych w{\l}asno\'sciach aktynu},
     journal = {Prace Matematyczno-Fizyczne},
     pages = {89--153},
     publisher = {mathdoc},
     volume = {24},
     number = {1},
     year = {1913},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/item/PMF_1913_24_1_a1/}
}