Thompson Ambler, Hobish Mitchell K
Radiometric Physics Division, National Institute of Standards and Technology, Gaithersburg, MD 20899-0001.
5606 Rockspring Road, Baltimore, MD 21209.
J Res Natl Inst Stand Technol. 1994 Nov-Dec;99(6):765-773. doi: 10.6028/jres.099.069.