Gutzwiller-Helfenfinger, E. and Heinrichs, K. 2020. The Happy Victimizer Pattern in Adulthood: State of the Art and Contrasting Approaches: Introduction to the Special Issue. Frontline Learning Research. 8, 5 (Jul. 2020), 1–4. DOI:https://doi.org/10.14786/flr.v8i5.681.