@article{FAA_1969_3_4_a6,
     author = {I. A. Shishmarev},
     title = {A mean value theorem for a polyharmonic equation and its consequences},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {69--76},
     publisher = {mathdoc},
     volume = {3},
     number = {4},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1969_3_4_a6/}
}