@article{TMF_1990_85_2_a4,
     author = {V. R. Kudashev and S. E. Sharapov},
     title = {Generalized hodograph method from the group-theoretical point of~view},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {205--210},
     year = {1990},
     volume = {85},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1990_85_2_a4/}
}