@article{AIF_1964__14_1_21_0,
     author = {Koszul, Jean-Louis},
     title = {Propri\'et\'es de stabilit\'e des lois d'op\'eration propres},
     journal = {Annales de l'Institut Fourier},
     pages = {21--29},
     publisher = {Institut Fourier},
     address = {Grenoble},
     volume = {14},
     number = {1},
     year = {1964},
     doi = {10.5802/aif.155},
     mrnumber = {30 #3174},
     zbl = {0139.16402},
     language = {fr},
     url = {http://www.numdam.org/articles/10.5802/aif.155/}
}