TY - JOUR AU - I. I. Bavrin TI - Operators for harmonic functions and their applications JO - Differencialʹnye uravneniâ PY - 1985 SP - 9 EP - 15 VL - 21 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1985_21_1_a1/ LA - ru ID - DE_1985_21_1_a1 ER -