TY - JOUR AU - B. B. Oshorov TI - Three-dimensional analogs of Cauchy--Riemann and Bitsadze systems JO - Sibirskij žurnal čistoj i prikladnoj matematiki PY - 2005 SP - 64 EP - 68 VL - 5 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VNGU_2005_5_1_a5/ LA - ru ID - VNGU_2005_5_1_a5 ER -