@article{AIHPA_1968__9_1_17_0,
     author = {Droz-Vincent, Ph. and Hakim, R\'emi},
     title = {Collective motions of the relativistic gravitational gas},
     journal = {Annales de l'institut Henri Poincar\'e. Section A, Physique Th\'eorique},
     pages = {17--33},
     publisher = {Gauthier-Villars},
     volume = {9},
     number = {1},
     year = {1968},
     language = {en},
     url = {http://archive.numdam.org/item/AIHPA_1968__9_1_17_0/}
}