Urban Rapid Transit
Rod Weis, Texas A&M University Lana Wolken, Texas A&M University Joe Richmond, University of North Texas Operating Your Own System Versus Contracting.
2014 Gordon Koven and Levenson Citi Bike Takes New York
The ERA Bulletin 2011-03
Discover e-infographic Issue 2 (Aug 2013)
Urban Rapid Transit John Dulin Garrett Page Surbhi Kapoor.
Stockh'n'go April 2011
Online Publications
Tacoma Daily Index, June 19, 2014
