@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/}
}