TY - JOUR AU - Ohno, Yoshihiro C2 - Proc of NCSL 1996 Workshop and Symposium DA - 1996-01-01 LA - en M1 - 1 PB - Proc of NCSL 1996 Workshop and Symposium PY - 1996 TI - Improved Photometric Standards and Calibration Procedures at NIST ER -