TY  - BOOK
AU  - Ribbing, Carl, ed.
TI  - Hard Materials in Optics
T2  - Proceedings of SPIE; V. 1275
SN  - 9780819403223 (Print)
PY  - 1990///
CY  - Washington, USA
PB  - SPIE
UR  - https://www.spiedigitallibrary.org/conference-proceedings-of-spie/1275
ER  -