Gautam, P., A. Hosoi, T. Sakai, and K. Arita. “Magnetostratigraphic Evidence for the Occurrence of Pre-Brunhes (>780 Kyr) Sediments in the Northwestern Part of the Kathmandu Valley, Nepal”. Journal of Nepal Geological Society, vol. 25, Dec. 2001, pp. 99–110, doi:10.3126/jngs.v25i0.32065.