@article{IM2_1974_8_6_a5,
     author = {V. S. Afraimovich and L. P. Shilnikov},
     title = {On attainable transitions from {Morse{\textendash}Smale} systems to systems with many periodic motions},
     journal = {Izvestiya. Mathematics},
     pages = {1235--1270},
     year = {1974},
     volume = {8},
     number = {6},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1974_8_6_a5/}
}