@article{DE_1993_29_10_a17,
     author = {O. V. Kashtanov},
     title = {Inverse mean value theorem for $i$th order associated functions of the {Laplace} operator},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1822--1824},
     publisher = {mathdoc},
     volume = {29},
     number = {10},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1993_29_10_a17/}
}