Gw mau tau Lihat juga dari ASTERIG

Blanco, C.; Clement, R.; Derevensky, J.L.; Goudriaan, A.E.; Griffiths, M.D.; Hodgins, D.C.; van Holst, R.J.; Liesching, M.; Moersen, C.; Molinaro, S.; Parke, A.; Peren, F.W.; Perez-Fuentes, G.: Safeguarding the Protection of Minors and Players with Respect to Commercial Gambling in Germany – 2.0, Munich, 2016, ISBN 978-3-945939-08-6.