Kuwahara, Y., M. R. Paudel, T. Maki, R. Fujii, and H. Sakai. “Variations of Paleoclimate and Paleoenvironment During the Last 40 Kyr Recorded in Clay Minerals in the Kathmandu Basin Sediments”. Himalayan Journal of Sciences, vol. 2, no. 4, Feb. 2008, pp. 190-1, doi:10.3126/hjs.v2i4.870.