Improvement in Routine Analysis with the Beckman I.R. 2 Infra-Red Spectrophotometer by a Slight Mechanical Modification

W. S. Baird, H. M. O’Bryan, George Ogden, and Dorothy Lee
J. Opt. Soc. Am. 37(10) 754-761 (1947)

E. J. Martin, A. W. Fischer, B. Mandel, and R. E. Nusbaum
J. Opt. Soc. Am. 37(11) 923-931 (1947)

John U. White and Max D. Liston
J. Opt. Soc. Am. 40(1) 29-35 (1950)