F. Media and A. , QuizClash | Challenge your friends!

K. Trotier, Fragen über Fragen -Die Wissens-App " Quizduell " erobert die Downloadcharts

K. Sagatz, ARD setzt, Quizduell " zunächst nicht fort

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B. Hardinghaus, Interview mit LeBernd : Bernd Schneider über Quizduell

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M. Bellis, The History of Trivial Pursuit

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