TY - JOUR AU - Miller, Carl AU - Heimer, T AU - Zong, Yuqin AU - Ohno, Yoshihiro AU - Gyula, D C2 - Lighting & Engineering DA - 2004-01-01 LA - en M1 - 12 PB - Lighting & Engineering PY - 2004 TI - Development of LED Photometric Standards at NIST ER -