Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1979_247_5_a18, author = {A. V. Zhiber and A. B. Shabat}, title = {The {Klein--Gordon} equation with nontrivial group}, journal = {Doklady Akademii Nauk}, pages = {1103--1107}, publisher = {mathdoc}, volume = {247}, number = {5}, year = {1979}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1979_247_5_a18/} }
A. V. Zhiber; A. B. Shabat. The Klein--Gordon equation with nontrivial group. Doklady Akademii Nauk, Tome 247 (1979) no. 5, pp. 1103-1107. http://geodesic.mathdoc.fr/item/DAN_1979_247_5_a18/