About ONODERA YUKI
About KAKU TERUTOSHI
About 北海道庁土木部
About ITO KURAKICHI
About 土木学会年次学術講演会講演概要集 第4部
About Hokkaido
About Road maintenance and repair
About Glaciologic engineering,cold region construction
About 北海道
About 幹線道路
About 冬期
About 路面性状
About 報告