@article{AIHP_1963__18_1_99_0,
     author = {Papapetrou, A.},
     title = {Quelques identit\'es dans la relativit\'e g\'en\'erale et dans la th\'eorie du champ unifi\'e},
     journal = {Annales de l'institut Henri Poincar\'e},
     pages = {99--108},
     publisher = {INSTITUT HENRI POINCAR\'E ET GAUTHIER-VILLARS & Cie},
     volume = {18},
     number = {1},
     year = {1963},
     mrnumber = {161716},
     zbl = {0112.44405},
     language = {fr},
     url = {http://archive.numdam.org/item/AIHP_1963__18_1_99_0/}
}