@article{ZVMMF_2009_49_2_a10, author = {S. P. Popov}, title = {On the shapes of two-dimensional soliton perturbations in simple lattices}, journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki}, pages = {323--331}, publisher = {mathdoc}, volume = {49}, number = {2}, year = {2009}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/ZVMMF_2009_49_2_a10/} }