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@article{DE_1990_26_12_a22, author = {V. V. Mityushev}, title = {A functional equation for harmonic functions in a multiply connected domain}, journal = {Differencialʹnye uravneni\^a}, pages = {2176--2178}, publisher = {mathdoc}, volume = {26}, number = {12}, year = {1990}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1990_26_12_a22/} }
V. V. Mityushev. A functional equation for harmonic functions in a multiply connected domain. Differencialʹnye uravneniâ, Tome 26 (1990) no. 12, pp. 2176-2178. http://geodesic.mathdoc.fr/item/DE_1990_26_12_a22/