TY - CONF AU - Yuqin Zong AU - Yoshihiro Ohno C2 - 26th Session of the CIE , Beijing, CH DA - 2007-07-04 LA - en PB - 26th Session of the CIE , Beijing, CH PY - 2007 TI - Realization of total spectral radiant flux scale and calibration service at NIST UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=101809 ER -