@article{PORMA_1948__7_2_114659,
     author = {Fr\'echet, Maurice},
     title = {La notion de diff\'erentielle sur un groupe ab\'elien},
     journal = {Portugaliae mathematica},
     pages = {59--72},
     publisher = {mathdoc},
     volume = {7},
     number = {2},
     year = {1948},
     mrnumber = {0027952},
     zbl = {0032.16801},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1948__7_2_114659/}
}