@article{AIHPA_1969__10_4_445_0,
     author = {Le Denmat, G.},
     title = {Contribution \`a l'\'etude des solutions radiatives approch\'ees des \'equations {d'Einstein} \`a partir d'une base non minkowskienne},
     journal = {Annales de l'institut Henri Poincar\'e. Section A, Physique Th\'eorique},
     pages = {445--464},
     publisher = {Gauthier-Villars},
     volume = {10},
     number = {4},
     year = {1969},
     language = {fr},
     url = {http://archive.numdam.org/item/AIHPA_1969__10_4_445_0/}
}