@article{ZVMMF_1994_34_7_a4,
     author = {S. A. Abramov},
     title = {D'Alembert substitutions and adjoint differential equations (computer-algebraic aspects)},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {1001--1014},
     publisher = {mathdoc},
     volume = {34},
     number = {7},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1994_34_7_a4/}
}