Reconstruction of environmental and climatic changes in the Paleo-Kathmandu Lake during the last 700 ka: An approach from fossil-diatom study - Hayashi, Tatsuya; Sakai, Harutaka; Tanimura, Yoshihiro; Sakai, Hideo; Yahagi, Wataru; Uchida, Masau (Himalayan Journal of Sciences, 2008)