TY - GEN AU - E Early AU - Christopher Cromer AU - X Xiong AU - D Dummer AU - Thomas O'Brian AU - Albert Parr C2 - Journal of Research (NIST JRES), National Institute of Standards and Technology, Gaithersburg, MD DA - 1999-07-26 LA - en M1 - 43 PB - Journal of Research (NIST JRES), National Institute of Standards and Technology, Gaithersburg, MD PY - 1999 TI - NIST Reference Densitometer for Visual Diffuse Transmission Density UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=841323 ER -