@article{FAA_2001_35_4_a6,
     author = {V. D. Sedykh},
     title = {Some {Invariants} of {Admissible} {Homotopies} of {Space} {Curves}},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {54--66},
     publisher = {mathdoc},
     volume = {35},
     number = {4},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_2001_35_4_a6/}
}