TY  - JOUR
AU  - M. F. Atiyah
AU  - I. M. Singer
TI  - The index of elliptic operators. IV
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1972
VL  - 27
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1972_27_4_a6/
LA  - ru
ID  - RM_1972_27_4_a6
ER  -