%0 Journal Article %A L. V. Zhizhiashvili %T Conjugate functions of two variables and double conjugate trigonometric series %J Doklady Akademii Nauk %D 1964 %P 521-523 %V 155 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1964_155_3_a7/ %G ru %F DAN_1964_155_3_a7