TY  - JOUR
AU  - S. M. Vishik
TI  - Singularities of analytic foliations and characteristic classes
JO  - Funkcionalʹnyj analiz i ego priloženiâ
PY  - 1973
SP  - 1
EP  - 15
VL  - 7
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/FAA_1973_7_1_a0/
LA  - ru
ID  - FAA_1973_7_1_a0
ER  -