@article{SM_1981_40_2_a5,
     author = {V. P. Davidyan},
     title = {On points of coincidence of two mappings},
     journal = {Sbornik. Mathematics},
     pages = {205--210},
     publisher = {mathdoc},
     volume = {40},
     number = {2},
     year = {1981},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1981_40_2_a5/}
}