@article{MZM_1973_14_5_a8,
     author = {N. K. Gavrilov},
     title = {Three-dimensional dynamic systems with noncoarse homoclinical contours},
     journal = {Matemati\v{c}eskie zametki},
     pages = {687--696},
     year = {1973},
     volume = {14},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1973_14_5_a8/}
}