@article{CHFMJ_2017_2_4_a4,
     author = {V. V. Karachik},
     title = {Neumann type problem for polyharmonic equation in a ball},
     journal = {\v{C}el\^abinskij fiziko-matemati\v{c}eskij \v{z}urnal},
     pages = {420--429},
     publisher = {mathdoc},
     volume = {2},
     number = {4},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CHFMJ_2017_2_4_a4/}
}