@article{MT_2013_16_1_a9,
     author = {O. E. Yaremko},
     title = {A~generalization of the {Poisson} integral formula for the functions harmonic and biharmonic in a~ball},
     journal = {Matemati\v{c}eskie trudy},
     pages = {189--197},
     publisher = {mathdoc},
     volume = {16},
     number = {1},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MT_2013_16_1_a9/}
}