TY - BOOK AU - , ed. TI - Optics in Solar Energy Utilization I T2 - Proceedings of SPIE; V. 0068 SN - 9780892520800 (Print) PY - 1976/// CY - Washington, USA PB - SPIE UR - https://www.spiedigitallibrary.org/conference-proceedings-of-spie/0068 ER -