Are Arbitrary References OK?

Dahm D.J. Dahm K.D. , J. Near Infrared Spectrosc. 3, 53–59 (1995).

Olinger J.M. Griffiths P.R. , “Theory of Diffuse Reflectance in the NIR Region”, in Handbook of Near-Infrared Analysis, First Edition, Ed by Burns D.A. Ciurczak E. W. , Marcel Dekker, Inc., New York, Chapter 3, pp. 13–35 (1992).

Olinger J.M. Griffiths P.R. , Anal Chem. 60, 2427 (1988).