E. . Potembska and B. . Pawłowska, “Age and severity of Internet addiction as shown by lower and upper secondary school students”, Curr Probl Psychiatry, vol. 11, no. 1, pp. 42–46, Apr. 2010, Accessed: Sep. 06, 2025. [Online]. Available: https://czasopisma.umlub.pl/cpp/article/view/2158