@article{AIHPA_1967__6_1_1_0, author = {McVittie, G. C.}, title = {Gravitational motions of collapse or of expansion in general relativity}, journal = {Annales de l'I.H.P. Physique th\'eorique}, pages = {1--15}, publisher = {Gauthier-Villars}, volume = {6}, number = {1}, year = {1967}, language = {en}, url = {http://geodesic.mathdoc.fr/item/AIHPA_1967__6_1_1_0/} }