@article{TVIM_2018_3_a4,
     author = {A. I. Morozov and O. V. Pochinka},
     title = {About new invariants of kupka-smale diffeomorphisms on the sphere without sources and sinks},
     journal = {Taurida Journal of Computer Science Theory and Mathematics},
     pages = {82--92},
     publisher = {mathdoc},
     number = {3},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TVIM_2018_3_a4/}
}