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@article{DAN_1966_168_4_a2, author = {A. V. Bitsadze}, title = {A criterion for convergence of the gradients of a sequence of harmonic functions}, journal = {Doklady Akademii Nauk}, pages = {733--734}, publisher = {mathdoc}, volume = {168}, number = {4}, year = {1966}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1966_168_4_a2/} }
A. V. Bitsadze. A criterion for convergence of the gradients of a sequence of harmonic functions. Doklady Akademii Nauk, Tome 168 (1966) no. 4, pp. 733-734. http://geodesic.mathdoc.fr/item/DAN_1966_168_4_a2/