TY - BOOK AU - Clement, Dieter, ed. TI - Characterization, Propagation, and Simulation of Sources and Backgrounds II T2 - Proceedings of SPIE; V. 1687 SN - 9780819408525 (Print) PY - 1992/// CY - Washington, USA PB - SPIE UR - https://www.spiedigitallibrary.org/conference-proceedings-of-spie/1687 ER -