@article{VYURU_2013_6_3_a5,
     author = {V. V. Karachik},
     title = {On the mean-value property for polyharmonic functions},
     journal = {Vestnik \^U\v{z}no-Uralʹskogo gosudarstvennogo universiteta. Seri\^a, Matemati\v{c}eskoe modelirovanie i programmirovanie},
     pages = {59--66},
     publisher = {mathdoc},
     volume = {6},
     number = {3},
     year = {2013},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/VYURU_2013_6_3_a5/}
}