TY - JOUR AU - Eric Shirley C2 - Applied Optics DA - 1998-01-01 LA - en M1 - 37 PB - Applied Optics PY - 1998 TI - Revised formulas for diffraction effects with point and extended sources UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=104181 ER -