@article{DE_1985_21_1_a20,
     author = {T. I. Andriadze},
     title = {The exterior {Poincar\'e} problem for metaharmonic potentials of a simple layer},
     journal = {Differencialʹnye uravneni\^a},
     pages = {156--158},
     publisher = {mathdoc},
     volume = {21},
     number = {1},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1985_21_1_a20/}
}