@article{DAN_1984_279_4_a20,
     author = {I. Yu. Ginevskaya and O. A. Sinkevich},
     title = {On the theory of two-dimensional contraction},
     journal = {Doklady Akademii Nauk},
     pages = {852--856},
     publisher = {mathdoc},
     volume = {279},
     number = {4},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1984_279_4_a20/}
}