@article{DE_1987_23_3_a1,
     author = {S. Kh. Aranson},
     title = {On generic bifurcations of diffeomorphisms of a circle},
     journal = {Differencialʹnye uravneni\^a},
     pages = {388--394},
     publisher = {mathdoc},
     volume = {23},
     number = {3},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1987_23_3_a1/}
}