TY  - RPRT
TI  - Formally exact quantization condition for nonrelativistic quantum systems.
AU  - Y C Ou
AU  - Zhuangqi Cao
AU  - Qishun Shen
PY  - 2004
DO  - 10.1063/1.1799015
UR  - https://pubmed.ncbi.nlm.nih.gov/15511134/
ID  - 15511134
ER  -