TY  - JOUR
TI  - On the trace formula for a differential operator of second order with unbounded operator coefficient
AU  - GÜL, E.
AU  - ÜÇÜNCÜ, D.
JO  - Sigma Journal of Engineering and Natural Sciences
PY  - 2018
VL  - 9
SP  - 31
EP  - 38
DO  - 
ER  -