"曾川 宏彬,岩波 光保,千々和 伸浩,中山 一秀","道路の維持管理業務に着目した包括的民間委託導入に向けた土木行政における地方自治体職員の意思決定行動の分析",,"土木学会論文集F4（建設マネジメント）",,"Vol. 77","No. 1","p. 172-190",2021,Aug.
"曾川宏彬,小田切勝也,岩波光保","Ｘ線応力測定法のコンクリート構造物中の鉄筋への適用可能性に関する検討","土木学会第73回年次学術講演会",,,"Vol. VI",,"pp. 901-902",2018,Aug.
"Hiroaki Sogawa,Katsuya Odagiri,Mitsuyasu Iwanami,田中樹由,野末秀和","Investigation on applicability of x-ray stress measurement to steel bar in concrete structure","Proceedings of International Conference on Concrete and Steel: Technology, Engineering and Design (CASTED 2018)",,,,,,2018,May