@article{ZVMMF_1967_7_3_a17,
     author = {A. D. Lyashko and M. M. Karchevskii},
     title = {Investigating the method of straight lines for non-linear elliptic equations},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {677--680},
     publisher = {mathdoc},
     volume = {7},
     number = {3},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1967_7_3_a17/}
}