TY - RPRT TI - The NIST-traceable reference-material program for wavelength-reference absorption cells AU - Gilbert, Sarah L AU - Wang, Chih-Ming AU - Drapela, Timothy J PY - 2003 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST SP 260-151 DO - 10.6028/NIST.SP.260-151 ER -