@article{morimoto_mcclure_stanfield_2001, title={Hand-held NIR spectrometry: Part I: An instrument based upon gap-second derivative theory}, volume={55}, ISSN={["0003-7028"]}, DOI={10.1366/0003702011951489}, number={2}, journal={APPLIED SPECTROSCOPY}, author={Morimoto, S and McClure, WF and Stanfield, DL}, year={2001}, month={Feb}, pages={182–189} }