Voir la notice de l'article provenant de la source Math-Net.Ru
@article{AA_1990_2_3_a1, author = {M. V. Babich}, title = {Real finite-gap solutions of equations connected with the {sine-Gordon} equation}, journal = {Algebra i analiz}, pages = {63--77}, publisher = {mathdoc}, volume = {2}, number = {3}, year = {1990}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AA_1990_2_3_a1/} }
M. V. Babich. Real finite-gap solutions of equations connected with the sine-Gordon equation. Algebra i analiz, Tome 2 (1990) no. 3, pp. 63-77. http://geodesic.mathdoc.fr/item/AA_1990_2_3_a1/