@misc{indiciae5fb2ba6c0e9c, title = {Canonical transformations to action and phase-angle variables and phase operators.}, author = {A Luis and LL Sánchez-Soto}, year = {1993}, doi = {10.1103/physreva.48.752}, url = {https://pubmed.ncbi.nlm.nih.gov/9909651/}, note = {Source identifier: 9909651} }