Outline of Hisoyama Tunnel in Nishikanbara Drainage Project
国営西蒲原排水新々樋曽山トンネルの実施計画

Kouichi YAMAZAKI, Kenichi YANAGIDA, Yasushi MOMOZAW
1994 Journal of the Agricultural Engineering Society, Japan  
doi:10.11408/jjsidre1965.62.3_209 fatcat:dy4ik7egrrc4veb4tzkvnbobmq