TY - JOUR AU - M. A. Ovchinnikov TI - Representation of homeotopies of a~torus by simple polyhedra with a~boundary JO - Matematičeskie zametki PY - 1999 SP - 533 EP - 539 VL - 66 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1999_66_4_a7/ LA - ru ID - MZM_1999_66_4_a7 ER -