Boring Operation at 5,400 m a.s.l. in Yala Glacier, Langtang Himal, Nepal: A Technical Report:
S. Takenaka, T. Kurokawa, O. Watanabe (1981 project boring team) and M. Yoshida, H. Iida, O. Watanabe (1982 project boring team):107-112
Boring Operation at 5,400 m a.s.l. in Yala Glacier, Langtang Himal, Nepal: A Technical Report:
