TY  - JOUR
AU  - R. V. Plykin
TI  - Sources and sinks of $A$-diffeomorphisms of surfaces
JO  - Sbornik. Mathematics
PY  - 1974
SP  - 233
EP  - 253
VL  - 23
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1974_23_2_a4/
LA  - en
ID  - SM_1974_23_2_a4
ER  -