TY  - RPRT
TI  - Higher-derivative operators and DeWitt's WKB ansatz.
AU  - HW Lee
AU  - PY Pac
PY  - 1986
DO  - 10.1103/physrevd.33.1012
UR  - https://pubmed.ncbi.nlm.nih.gov/9956720/
ID  - 9956720
ER  -