@article{MZM_1999_66_4_a7,
     author = {M. A. Ovchinnikov},
     title = {Representation of homeotopies of a~torus by simple polyhedra with a~boundary},
     journal = {Matemati\v{c}eskie zametki},
     pages = {533--539},
     publisher = {mathdoc},
     volume = {66},
     number = {4},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1999_66_4_a7/}
}