TY - BOOK AU - Yu, Francis, ed. TI - Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications X T2 - Proceedings of SPIE; V. 5560 SN - 9780819454980 (Print) PY - 2004/// CY - Washington, USA PB - SPIE UR - https://www.spiedigitallibrary.org/conference-proceedings-of-spie/5560 ER -