TY - JOUR AU - A. V. Chakmazyan TI - The Norden-normalized submanifold with a~parallel field of normal directions in $P_n$ JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1980 SP - 57 EP - 63 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1980_1_a10/ LA - ru ID - IVM_1980_1_a10 ER -