TY  - RPRT
TI  - Canonical transformations to action and phase-angle variables and phase operators.
AU  - A Luis
AU  - LL Sánchez-Soto
PY  - 1993
DO  - 10.1103/physreva.48.752
UR  - https://pubmed.ncbi.nlm.nih.gov/9909651/
ID  - 9909651
ER  -