@article{DAN_1979_247_1_a21,
     author = {O. G. Kozlova and Yu. A. Kharitonov and N. V. Belov},
     title = {Hypomorphism and hypermorphism},
     journal = {Doklady Akademii Nauk},
     pages = {100--102},
     publisher = {mathdoc},
     volume = {247},
     number = {1},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1979_247_1_a21/}
}