@article{UZERU_1991_2_a1,
     author = {\'E. A. Mirzakhanyan},
     title = {On some properties of a class of mappings of {Gilbert} space subsets},
     journal = {Proceedings of the Yerevan State University. Physical and mathematical sciences},
     pages = {11--14},
     publisher = {mathdoc},
     number = {2},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/UZERU_1991_2_a1/}
}