@article{ZVMMF_2013_53_7_a4,
     author = {A. A. Ershov},
     title = {Mixed problem for a harmonic function},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {1094--1106},
     publisher = {mathdoc},
     volume = {53},
     number = {7},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_2013_53_7_a4/}
}