Seiji Totsuka
- An Evaluation of Former Choroku Bridge through Regional History. Dans: Historical Studies in Civil Engineering, v. 17 ( 1997). (1997):
- An Evaluation of Historical Concrete Arch Bridges Constructed in Kumamoto Prefecture. Dans: Historical Studies in Civil Engineering, v. 16 ( 1996). (1996):
- Study on Concrete Arch Bridges Constructed in Kumamoto Prefecture before 1955. Dans: Historical Studies in Civil Engineering, v. 15 ( 1995). (1995):