Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Okuzawa Koichi and Seki Yoji and Naito Kazuki and Kamei Atsushi and Suzuki Masaya and Takeda Mikio and Takeno Naoto and Watanabe Yoshio,"Changes of geochemical characteristics of water in hydrological cycle in mountainous region–an example from the Kanamaru area, Niigata and Yamagata Prefectures, northeastern Japan",BULLETIN OF THE GEOLOGICAL SURVEY OF JAPAN,13464272,"National Institute of Advanced Industrial Science and Technology, Geological Survey of Japan",2008,59,5-6,271-298,https://cir.nii.ac.jp/crid/1390282680171542656,https://doi.org/10.9795/bullgsj.59.271