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@article{AIHPA_1967__7_3_245_0, author = {Misra, M.}, title = {Pure radiation fields in general relativity}, journal = {Annales de l'I.H.P. Physique th\'eorique}, pages = {245--247}, publisher = {Gauthier-Villars}, volume = {7}, number = {3}, year = {1967}, language = {en}, url = {http://geodesic.mathdoc.fr/item/AIHPA_1967__7_3_245_0/} }
Misra, M. Pure radiation fields in general relativity. Annales de l'I.H.P. Physique théorique, Tome 7 (1967) no. 3, pp. 245-247. http://geodesic.mathdoc.fr/item/AIHPA_1967__7_3_245_0/