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@article{MZM_1994_56_5_a5, author = {B. Zh. Ishchanov}, title = {Generalization of {Fedorov's} theorem to $M$-harmonic functions}, journal = {Matemati\v{c}eskie zametki}, pages = {50--56}, publisher = {mathdoc}, volume = {56}, number = {5}, year = {1994}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1994_56_5_a5/} }
B. Zh. Ishchanov. Generalization of Fedorov's theorem to $M$-harmonic functions. Matematičeskie zametki, Tome 56 (1994) no. 5, pp. 50-56. http://geodesic.mathdoc.fr/item/MZM_1994_56_5_a5/