TY  - RPRT
TI  - Multiple-scale analysis of quantum systems.
AU  - CM Bender
AU  - LM Bettencourt
PY  - 1996
DO  - 10.1103/physrevd.54.7710
UR  - https://pubmed.ncbi.nlm.nih.gov/10020783/
ID  - 10020783
ER  -