TY  - GEN
AU  - Bertolotti, Mario 
TI  - Masers and lasers: an historical approach 
SN  - 9781482217773
PY  - 2015///
CY  - London
PB  - CRC press
KW  - Masers
KW  - Lasers
KW  - Nonlinear optics
ER  -