Gans, Joshua S and Stephen P King. "The Neutrality of Interchange Fees in Payment Systems" Topics in Economic Analysis & Policy, 3.1 (2003): -. Retrieved 19 Jun. 2013, from doi:10.2202/1538-0653.1069

Gans, J. & King, S. (2003). The Neutrality of Interchange Fees in Payment Systems. Topics in Economic Analysis & Policy, 3(1), pp. -. Retrieved 19 Jun. 2013, from doi:10.2202/1538-0653.1069

Gans, Joshua S and Stephen P King. 2003. The Neutrality of Interchange Fees in Payment Systems. Topics in Economic Analysis & Policy. 3(1): -. Retrieved 19 Jun. 2013, from doi:10.2202/1538-0653.1069