TY  - JOUR
AU  - I. S. Kats
TI  - Integral characteristics of the growth of spectral functions for generalized second order boundary problems with boundary conditions at a regular end
JO  - Izvestiya. Mathematics 
PY  - 1971
SP  - 161
EP  - 191
VL  - 5
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM2_1971_5_1_a9/
LA  - en
ID  - IM2_1971_5_1_a9
ER  -