@article{DAN_1974_218_5_a14,
     author = {D. P. Zeragi\^a},
     title = {On branching of periodic solutions for one autonomous system},
     journal = {Doklady Akademii Nauk},
     pages = {1052--1055},
     publisher = {mathdoc},
     volume = {218},
     number = {5},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1974_218_5_a14/}
}