TY - JOUR AU - Ulf Griesmann C2 - Applied Optics DA - 2006-08-01 LA - en M1 - 45 (23) PB - Applied Optics PY - 2006 TI - Three-Flat Test Solutions based on Simple Mirror Symmetry UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=822358 ER -