@article{ZVMMF_1984_24_5_a11,
     author = {V. K. Leont'ev},
     title = {Realizability of lengths in trajectory problems},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {747--753},
     publisher = {mathdoc},
     volume = {24},
     number = {5},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1984_24_5_a11/}
}