H. J. Keegan

Spectral Properties of Plants

D. M. Gates, H. J. Keegan, J. C. Schleter, 1965 .

Spectrophotometric and colorimetric study of diseased and rust resisting cereal crops

H. J. Keegan, A. JrHallWiley, G. M. Haas, 1956 .

Infrared spectral reflectance of frost.

H. J. Keegan, V. R. Weidner, 1966 .

Glass Filters for Checking Performance of Spectrophotometer-Integrator Systems of Color Measurement

D. B. Judd, H. J. Keegan, J. C. Schleter, 1962, Journal of Research of the National Bureau of Standards. Section A, Physics and Chemistry.

Calibration and Operation of the General Electric Recording Spectrophotometer of the National Bureau of Standards

K. S. Gibson, H. J. Keegan, 1938 .

Recalibration of the NBS Glass Standards of Spectral Transmittance

H. J. Keegan, J. C. Schleter, M. Belknap, 1964 .

Spectral transmissive properties of five selected optical glasses

H. J. Keegan, M. Belknap, D. J. Cordrey, 1954 .

Spectrophotometric and colorimetric determination of the colors of the TCCA standard color cards.

D. B. Judd, G REIMANN, D B JUDD, 1946, Journal of research of the National Bureau of Standards.

Specification of railroad signal colors and glasses.

K. S. Gibson, H J KEEGAN, K S GIBSON, 1945, Journal of the Optical Society of America.