TY - JOUR AU - A. I. Melent'ev TI - A normalized double sphere and a~real model for a~connection over the algebra of bicomplex numbers JO - Trudy Geometricheskogo Seminara PY - 1971 SP - 57 EP - 69 VL - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/KUTGS_1971_6_a6/ LA - ru ID - KUTGS_1971_6_a6 ER -