@article{MZM_2019_105_1_a11,
     author = {V. Z. Grines and E. Ya. Gurevich and O. V. Pochinka},
     title = {A {Combinatorial} {Invariant} of {Morse--Smale} {Diffeomorphisms} without {Heteroclinic} {Intersections} on the {Sphere~}$S^n$, $n\ge 4$},
     journal = {Matemati\v{c}eskie zametki},
     pages = {136--141},
     publisher = {mathdoc},
     volume = {105},
     number = {1},
     year = {2019},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2019_105_1_a11/}
}