A. Stadler, www.gamblingcompliance.com, GamblingCompliance 18. April 2012
T. Talos/N. Aquilina, European Law Reporter, ELR 9/2011, 253-258
A. Stadler/M. Vogelsberger, world online gambling 04/2011, 6
T. Talos/N. Aquilina, world online gambling 03/2011, 10