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Harrer, Mathias, Jennifer Apolinário-Hagen, Lara Fritsche, Christel Salewski, Anna-Carlotta Zarski, Dirk Lehr, Harald Baumeister, Pim Cuijpers, och David Daniel Ebert. "Effect of an Internet- and App-based Stress Intervention Compared to Online Psychoeducation in University Students With Depressive Symptoms: Results of a Randomized Controlled Trial()." Internet Interv 2021.

Harrer, Mathias, et al. "Effect of an Internet- and App-based Stress Intervention Compared to Online Psychoeducation in University Students With Depressive Symptoms: Results of a Randomized Controlled Trial()." Internet Interv 2021.