TY - JOUR AU - S. G. Leiko TI - Planar connections onto manifold with commutative algebra of two almost product structures JO - Učënye zapiski Kazanskogo universiteta. Seriâ Fiziko-matematičeskie nauki PY - 2005 SP - 121 EP - 131 VL - 147 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/UZKU_2005_147_1_a10/ LA - ru ID - UZKU_2005_147_1_a10 ER -