Bruce Hapke
Olivier Thomas
N. J. Harrick
Gustav Kortüm
American Chemical Society Symposium on Reflectance Spectroscopy, Chicago, 1967
R. W. Frei
Reinhold Klockenkämper
Phil Williams
Jukka Räty
Wesley William Wendlandt
Mikhail Ostrooumov
Francis M. Mirabella
Herbert A. Elion
Louis G Tisinger
Rosalia Josephine Nastasi