TY - JOUR AU - V. A. Il'in AU - E. I. Moiseev TI - A mean value formula for the associated functions of the Laplace operator JO - Differencialʹnye uravneniâ PY - 1981 SP - 1908 EP - 1910 VL - 17 IS - 10 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1981_17_10_a18/ LA - ru ID - DE_1981_17_10_a18 ER -