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@article{DAN_1965_163_2_a8, author = {A. B. Shabat}, title = {On a property of solutions of elliptic equations of second order}, journal = {Doklady Akademii Nauk}, pages = {303--305}, publisher = {mathdoc}, volume = {163}, number = {2}, year = {1965}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1965_163_2_a8/} }
A. B. Shabat. On a property of solutions of elliptic equations of second order. Doklady Akademii Nauk, Tome 163 (1965) no. 2, pp. 303-305. http://geodesic.mathdoc.fr/item/DAN_1965_163_2_a8/