TY - JOUR AU - P. M. Akhmet'ev TI - On isotopic and discrete realizations of maps of an~$n$-dimensional sphere in Euclidean space JO - Sbornik. Mathematics PY - 1996 SP - 951 EP - 980 VL - 187 IS - 7 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SM_1996_187_7_a0/ LA - en ID - SM_1996_187_7_a0 ER -