Freyth, Lennart. “Dating App Users After Two Years: A Dark Triad Amplification”. Studia Psychologica: Theoria et praxis 22, no. 1 (December 31, 2022): 23–31. Accessed December 22, 2024. https://czasopisma.uksw.edu.pl/index.php/sp/article/view/11268.