Longitudinal Effects of Excessive Smartphone Use on Stress and Loneliness: The Moderating Role of Self-Disclosure. - Kathrin Karsay; Desirée Schmuck; Jörg Matthes; Anja Stevic (Cyberpsychology Behav. Soc. Netw., 2019)

"Looking Up and Feeling Down". The influence of mobile social networking site use on upward social comparison, self-esteem, and well-being of adult smartphone users. - Desirée Schmuck; Kathrin Karsay; Jörg Matthes; Anja Stevic (Telematics Informatics, 2019)

"Too much to handle": Impact of mobile social networking sites on information overload, depressive symptoms, and well-being. - Jörg Matthes; Kathrin Karsay; Desirée Schmuck; Anja Stevic (Comput. Hum. Behav., 2020)

'Age Matters': A panel study investigating the influence of communicative and passive smartphone use on well-being. - Anja Stevic; Desirée Schmuck; Jörg Matthes; Kathrin Karsay (Behav. Inf. Technol., 2021)

Reflective smartphone disengagement: Conceptualization, measurement, and validation. - Jörg Matthes; Kathrin Karsay; Melanie Hirsch; Anja Stevic; Desirée Schmuck (Comput. Hum. Behav., 2022)

Out of control? How parents' perceived lack of control over children's smartphone use affects children's self-esteem over time. - Desirée Schmuck; Anja Stevic; Jörg Matthes; Kathrin Karsay (New Media Soc., 2023)

Opt-out, abstain, unplug. A systematic review of the voluntary digital disconnection literature. - Lise-Marie Nassen; Heidi Vandebosch; Karolien Poels; Kathrin Karsay (Telematics Informatics, 2023)

Sleeping with the smartphone: a panel study investigating parental mediation, adolescents' tiredness, and physical well-being. - Kathrin Karsay; Desirée Schmuck; Anja Stevic; Jörg Matthes (Behav. Inf. Technol., 2023)

Fear of Missing Out, Reflective Smartphone Disengagement, and Loneliness in Late Adolescents. - Jörg Matthes; Anja Stevic; Kevin Koban; Marina F. Thomas; Michaela Forrai; Kathrin Karsay (Cyberpsychology Behav. Soc. Netw., 2023)