TY  - BOOK
AU  - Fagan, William, ed.
TI  - Optical Security and Anticounterfeiting Systems
T2  - Proceedings of SPIE; V. 1210
SN  - 9780819402516 (Print)
PY  - 1990///
CY  - Washington, USA
PB  - SPIE
UR  - https://www.spiedigitallibrary.org/conference-proceedings-of-spie/1210
ER  -