1. (1) Nagase, K., A Study of Adhesion between the Rails and Running Wheels on Main Lines, Proc. I Mech E, Vol.203, No.F1 (1989), pp.33-42.
2. (2) Nagase, K. and Nakamura, H., Influence of Weather Condition upon Adhesion between Rails and Wheels, The 4th International Heavy Haul Railway Conf., (1989), pp.352-356.
3. Mechanisms of Wheel Flat Occurrence.
4. (5) Nagase, K., An Investigation into Inadequate Train Shunting Sensitivity of Track Circuit to Running Trains, Quarterly Reports, Vol.23, No.4 (1982), pp.166-170.