Röhr-Sendlmeier, U. M., I. Götze, and R. Stichel. “Medienerziehung in Der Familie: Regeln Und Motive, Umfang Und Auswirkungen Der Nutzung Von Computer, Fernseher Und Videokonsole: Parental Education Concerning Their children’s Use of Modern Media: Family Rules and Motives, Extent and Effects of Using the Computer, Watching Television and Playing Video Games”. Journal of Family Research, vol. 20, no. 2, Sept. 2008, pp. p. 107-130, doi:10.20377/jfr-249.