TY - JOUR AU - Theodore Doiron AU - Theodore Vorburger AU - P Sullivan C2 - Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology DA - 1999-07-01 LA - en M1 - 23(3) PB - Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology PY - 1999 TI - Effects of Defocus and Algorithm on Optical Step Height Calibration ER -