Masayuki Kumada
- Key vacuum technology issues to be solved in evacuated tube transportation. Dans: Journal of Modern Transportation, v. 19, n. 2 (juin 2011). (2011):
- Evacuated tube transport technologies (ET3)tm: a maximum value global transportation network for passengers and cargo. Dans: Journal of Modern Transportation, v. 19, n. 1 (mars 2011). (2011):