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@article{IM2_1993_41_1_a7, author = {S. A. Imomkulov}, title = {Twice differentiability of subharmonic functions}, journal = {Izvestiya. Mathematics }, pages = {157--167}, publisher = {mathdoc}, volume = {41}, number = {1}, year = {1993}, language = {en}, url = {http://geodesic.mathdoc.fr/item/IM2_1993_41_1_a7/} }
S. A. Imomkulov. Twice differentiability of subharmonic functions. Izvestiya. Mathematics , Tome 41 (1993) no. 1, pp. 157-167. http://geodesic.mathdoc.fr/item/IM2_1993_41_1_a7/