TY  - JOUR
AU  - B. V. Fedosov
TI  - An analytic formula for the index of an elliptic boundary value problem. III
JO  - Sbornik. Mathematics
PY  - 1976
SP  - 341
EP  - 359
VL  - 30
IS  - 3
UR  - http://geodesic.mathdoc.fr/item/SM_1976_30_3_a4/
LA  - en
ID  - SM_1976_30_3_a4
ER  -