@article{TIMB_2021_29_1_a9, author = {V. I. Korzyuk and O. A. Kovnatskaya and V. P. Serikov}, title = {Problems for the one-dimensional wave equation with conditionson characteristics and non-characteristic lines}, journal = {Trudy Instituta matematiki}, pages = {106--112}, publisher = {mathdoc}, volume = {29}, number = {1}, year = {2021}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TIMB_2021_29_1_a9/} }