@article{ZVMMF_1979_19_5_a9, author = {R. P. Tarasov and S. A. Kuchai}, title = {Approximate solution of~the direct and converse problems of~the propagation of~a~disturbance in~a~guiding medium}, journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki}, pages = {1178--1187}, publisher = {mathdoc}, volume = {19}, number = {5}, year = {1979}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/ZVMMF_1979_19_5_a9/} }