Hashimoto, T., H. Usuda, N. Mitamura, and T. Yawata. “Imaging and Measurement of Red-Infrared Stimulated Luminescence (R-IRSL) from Feldspar Samples”. Ancient TL, vol. 21, no. 1, June 2003, pp. 1-6, doi:10.26034/la.atl.2003.353.