@article{JMPA_1949_9_28__1_0,
     author = {Durand, Emile},
     title = {Propri\'et\'es et applications de 4 matrices nouvelles reli\'ees aux matrices de {Dirac}},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {1--33},
     volume = {9e s{\'e}rie, 28},
     year = {1949},
     zbl = {0034.13202},
     mrnumber = {29359},
     language = {fr},
     url = {http://www.numdam.org/item/JMPA_1949_9_28__1_0/}
}