Excessive Internet Use and its association with negative experiences: Quasi-validation of a short scale in 25 European countries. - Katerina Skarupová; Kjartan Ólafsson; Lukas Blinka (Comput. Hum. Behav., 2015)

The effect of smartphone use on trends in European adolescents' excessive Internet use. - Katerina Skarupová; Kjartan Ólafsson; Lukas Blinka (Behav. Inf. Technol., 2016)