@article{VMUMM_1999_4_a12,
     author = {E. A. Kudryavtseva},
     title = {Periodic motions of a planetary system with double planets. {The} generalized {Hill} problem},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {59--61},
     publisher = {mathdoc},
     number = {4},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1999_4_a12/}
}