TY  - RPRT
TI  - Squeezing in harmonic oscillators with time-dependent frequencies.
AU  - X Ma
AU  - W Rhodes
PY  - 1989
DO  - 10.1103/physreva.39.1941
UR  - https://pubmed.ncbi.nlm.nih.gov/9901449/
ID  - 9901449
ER  -