Ram C. Sharma, Hidetake Hirayama, Masatsugu Yasuda, Miki Asai, Keitarou Hara. Classification and Mapping of Plant Communities Using Multi-Temporal and Multi-Spectral Satellite Images. Journal of Geography and Geology. 2022. 14. 1. 43-57
Keitarou Hara, Mizuki Tomita, Hidetake Hirayama, Yoshihiko Hirabuki. Landscape restoration based on ecosystem services and historical recollections after the Great East Japan Earthquake. 10th IALE World Congress. Abstract Book Online. 2019. P0136
Hidetake Hirayama, Mizuki Tomita, Keitarou Hara. Analysis of changes in forest habitat connectivity in the disaster damaged Sendai Bay area of northeast Japan. 10th IALE World Congress. Abstract Book Online. 2019. P0126