Martin Wagener Dennis Kundisch Ryan Riordan Fethi A. Rabhi Philipp Herrmann Christof Weinhardt Price efficiency in futures and spot trading: The role of information technology. 400-409 2010 9 Electronic Commerce Research and Applications 5 http://dx.doi.org/10.1016/j.elerap.2010.04.002 db/journals/ecra/ecra9.html#WagenerKRRHW10