Gosling, Geoffrey D.; Wei, Wenbin; Freeman, Dennis (May 2012). "CASE STUDY REPORT: OAKLAND INTERNATIONAL AIRPORT BART CONNECTOR"(PDF). Research Project 2503: Collaborative Funding to Facilitate Airport Ground Access. Mineta Transportation Institute. Archived from the original(PDF) on September 7, 2015. Retrieved March 3, 2018.
Gosling, Geoffrey D.; Wei, Wenbin; Freeman, Dennis (May 2012). "CASE STUDY REPORT: OAKLAND INTERNATIONAL AIRPORT BART CONNECTOR"(PDF). Research Project 2503: Collaborative Funding to Facilitate Airport Ground Access. Mineta Transportation Institute. Archived from the original(PDF) on September 7, 2015. Retrieved March 3, 2018.