@article{AIHPA_1969__11_4_415_0,
     author = {Moret-Bailly, I.},
     title = {Structure du champ gravitationnel {\guillemotleft} non-radiatif {\guillemotright} dans le formalisme de {Newman-Penrose} en relativit\'e g\'en\'erale},
     journal = {Annales de l'institut Henri Poincar\'e. Section A, Physique Th\'eorique},
     pages = {415--438},
     publisher = {Gauthier-Villars},
     volume = {11},
     number = {4},
     year = {1969},
     language = {fr},
     url = {http://www.numdam.org/item/AIHPA_1969__11_4_415_0/}
}