Michio Okahara
- A Study On Vertical Bearing Characteristics Of Piles. In: 土木学会論文集 (Doboku Gakkai rombunshū), v. 1990, n. 418 (Juni 1990). (1990):
- 道路橋基礎の設計基準化に関する研究と展望 (Study And Scope On Design Standardization For Highway Bridge Foundations). In: 土木学会論文集 (Doboku Gakkai rombunshū), v. 2005, n. 784 ( 2005). (2005):
- Present situations and problems in design and construction of caisson foundations in Japan. Vorgetragen bei: IABSE Colloquium: Foundations for major bridges - Design and construction, New Delhi, India 1999. (1999):
- Future trans-strait road projects and technological issues. Vorgetragen bei: IABSE Symposium: Long-Span and High-Rise Structures, Kobe, Japan, September 1998. (1998):
- New types of undersea foundations for next generation projects. Vorgetragen bei: IABSE Symposium: Long-Span and High-Rise Structures, Kobe, Japan, September 1998. (1998):