@article{ZVMMF_2002_42_1_a4,
     author = {S. A. Ivanenko},
     title = {Existence of equations describing the classes of nondegenerate curvilinear coordinates in arbitrary domains},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {47--52},
     publisher = {mathdoc},
     volume = {42},
     number = {1},
     year = {2002},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_2002_42_1_a4/}
}