1. OuraY Electric energy in railways.Abstracts of 9thRailway Research Meeting pp.62–72(1996) (in Japanese)
2. AiharaN MorimotoF TsujimuraT Evaluation of life cycle CO2 emissions by various types of the meter gauged railway vehicle.Abstracts of 7thILCAJ Research Meeting pp.110–110(2011) (in Japanese)
3. OgawaT IinoY TanakaH Availability of energy‐saving technologies in electric railways.2018 IEEJ IA Conf. 5‐S1‐7 (2018) (in Japanese)
4. WatanabeS MiyatakeM TakagiR OgawaT Analysis of change in energy consumption by enhancing the driving operation in DC‐electric rolling stocks.IEEJ IA Symposium “Energy Conservation and New Energy Techniques in Electrical Railway Applications. 5‐S1‐5 (2016) (in Japanese)
5. OgawaT Energy‐saving operation tests on freight trains with regard to running resistance characteristics and motor efficiency.IEEJ Technical Meeting on Transportation and Electric Railway TER‐18‐064 (2018) (in Japanese)