@article{10_4064_sm_13_1_41_47,
     author = {C. Ryll-Nardzewski},
     title = {Sur les s\'eries de puissances dans le calcul op\'eratoire},
     journal = {Studia Mathematica},
     pages = {41--47},
     publisher = {mathdoc},
     volume = {13},
     number = {1},
     year = {1953},
     doi = {10.4064/sm-13-1-41-47},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-13-1-41-47/}
}