@article{FUNDAM_1947__34_1_213143, author = {Wac{\l}aw Sierpi\'nski}, title = {Deux th\'eor\`emes sur les familles de transformations}, journal = {Fundamenta Mathematicae}, pages = {30}, publisher = {mathdoc}, volume = {34}, number = {1}, year = {1947}, zbl = {0032.14601}, language = {fr}, url = {https://geodesic-test.mathdoc.fr/item/FUNDAM_1947__34_1_213143/} }