Takakuwa, S[oemon] ***, * Nagoya Gakuin University, 1-25 Atsutanishimachi, Atsuta-ku, Nagoya, Aichi,456-8612, Japan, ** Chuo Gakuin University, 451 Kujike, Abiko, Chiba, 270-1196, JAPAN, *** National University of Mongolia, Baga Toiruu 4, Sukhbaatar
Duureg, Ulaanbaatar, 210646, Mongolia, *** Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8601, Japan, kmiwa@ngu.ac.jp, yftan@cc.cgu.ac.jp, undram@ses.edu.mn, nyamkhuu.batdelger@gmail.com, takakuwa@soec.nagoya-u.ac.jp