Professor Harry Willis and the History of NIR Spectroscopy

Willis H.A. and Miller R.G.J. , J. Appt. Chem. 6, 385 (1956).

Willis H.A. and Miller R.G.J. , Difference Spectroscopy in the NIR. Molecular Spectroscopy Conference, Hydrocarbon Research Group of the Institute of Petroleum (1958).

Willis H.A. and Miller R.G.J. , Spectrochimica Acta 14, 119 (1959).