1. Development of hybrid railcars and catenary and battery-powered hybrid railcar system;Abiko;JR East Tech. Rev.,2012
2. Development of a Novel Energy System for LNG Locomotives;Al Ali,2015
3. Introduction to LNG safety;Alderman;Process Saf. Prog.,2005
4. News Release: AMTRAK Biodiesel Heartland Flyer Results Presented at Railroad Environmental Conference;AMTRAK,2011
5. Environmental Health and Safety Report;AMTRAK,2011