TY  - JOUR
AU  - Ya. L. Umanskii
TI  - Necessary and sufficient conditions for topological equivalence of three-dimensional Morse--Smale dynamical systems with a~finite number of singular trajectories
JO  - Sbornik. Mathematics
PY  - 1991
SP  - 227
EP  - 253
VL  - 69
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1991_69_1_a13/
LA  - en
ID  - SM_1991_69_1_a13
ER  -