%0 Journal Article %A T. P. Dubova %T The operator of harmonic conjugation in plane domains with piece-wise smooth boundary %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1972 %P 34-40 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1972_8_a4/ %G ru %F IVM_1972_8_a4