@article{AIHPA_1975__22_3_217_0,
     author = {Greco, Antonio},
     title = {Discontinuit\'es des rayons et stricte exceptionnalit\'e en magn\'etohydrodynamique relativiste},
     journal = {Annales de l'I.H.P. Physique th\'eorique},
     pages = {217--227},
     publisher = {Gauthier-Villars},
     volume = {22},
     number = {3},
     year = {1975},
     zbl = {0315.76063},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/item/AIHPA_1975__22_3_217_0/}
}