Sakai, T., A. P. Gajurel, H. Tabata, and B. N. Upreti. “Small-Amplitude Lake-Level Fluctuations Recorded in Aggrading Deltaic Deposits of the Upper Pleistocene Thimi and Gokarna Formations, Kathmandu Valley, Nepal”. Journal of Nepal Geological Society, vol. 25, Dec. 2001, pp. 43–51, doi:10.3126/jngs.v25i0.32049.