Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DE_1966_2_5_a9, author = {A. A. Grib}, title = {The symmetry group of solutions of the {Klein--Gordon} equation in the exterior vector field}, journal = {Differencialʹnye uravneni\^a}, pages = {688--694}, publisher = {mathdoc}, volume = {2}, number = {5}, year = {1966}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1966_2_5_a9/} }
A. A. Grib. The symmetry group of solutions of the Klein--Gordon equation in the exterior vector field. Differencialʹnye uravneniâ, Tome 2 (1966) no. 5, pp. 688-694. http://geodesic.mathdoc.fr/item/DE_1966_2_5_a9/