@article{BSMF_1939__67__56_0,
     author = {Potron},
     title = {Sur les matrices non n\'egatives et les solutions positives de certains syst\`emes lin\'eaires},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {56--61},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {67},
     year = {1939},
     doi = {10.24033/bsmf.1290},
     zbl = {0023.00202},
     language = {fr},
     url = {http://www.numdam.org/articles/10.24033/bsmf.1290/}
}