TY - BOOK AU - Rascher, Rolf, ed. TI - Sixth European Seminar on Precision Optics Manufacturing T2 - Proceedings of SPIE; V. 11171 SN - 9781510630512 (Print) PY - 2019/// CY - Washington, USA PB - SPIE UR - https://www.spiedigitallibrary.org/conference-proceedings-of-spie/11171 ER -