TY  - JOUR
AU  - M. Sh. Birman
AU  - V. A. Sloushch
TI  - Two-Sided Estimates for the Trace of the Difference of Two Semigroups
JO  - Funkcionalʹnyj analiz i ego priloženiâ
PY  - 2009
SP  - 26
EP  - 32
VL  - 43
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/FAA_2009_43_3_a2/
LA  - ru
ID  - FAA_2009_43_3_a2
ER  -