%0 Journal Article %A B. B. Oshorov %T Three-dimensional analogs of Cauchy–Riemann and Bitsadze systems %J Sibirskij žurnal čistoj i prikladnoj matematiki %D 2005 %P 64-68 %V 5 %N 1 %U http://geodesic.mathdoc.fr/item/VNGU_2005_5_1_a5/ %G ru %F VNGU_2005_5_1_a5