Positive degree-day factors for ice ablation on four glaciers in the Nepalese Himalayas and Qinghai-Tibetan Plateau Rijan Bhakta KAYASTHA, Yutaka AGETA, Masayoshi NAKAWO, Koji FUJITA, Akiko SAKAI and Yoshihiro MATSUDA:7-14 掲載号: BGR Vol. 20 (2003)