TY  - RPRT
TI  - Two photon annihilation operators and squeezed vacuum
AU  - Roy, Anil K.
AU  - Mehta, C. L.
AU  - Saxena, G. M.
PY  - 1993
UR  - https://ntrs.nasa.gov/citations/19930018137
ID  - 19930018137
ER  -