@article{DE_1981_17_10_a18,
     author = {V. A. Il'in and E. I. Moiseev},
     title = {A mean value formula for the associated functions of the {Laplace} operator},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1908--1910},
     publisher = {mathdoc},
     volume = {17},
     number = {10},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1981_17_10_a18/}
}