TY - JOUR AU - A. V. Kalinin TI - Estimates of the scalar products of vector fields and their application to some problems of mathematical physics JO - Izvestiya Instituta Matematiki i Informatiki Udmurtskogo Gosudarstvennogo Universiteta PY - 2006 SP - 55 EP - 56 VL - 37 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IIMI_2006_37_3_a23/ LA - ru ID - IIMI_2006_37_3_a23 ER -