Predictors of excessive use of social media and excessive online gaming in Czech teenagers / Jana Spilková, Pavla Chomynová, Ladislav Csémy
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  In: Journal of Behavioral Addictions. - ISSN 2062-5871, eISSN 2063-5303. - 2017. 6. évf. 4. sz., p. 611-619. : ill.