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Ruggieri, Sabrina; Friemel, Thomas; Sticca, Fabio; Perren, Sonja; Alsaker, Françoise (2013). Selection and influence effects in defending a victim of bullying: The moderating effects of school context. Procedia - social and behavioral sciences, 79, pp. 117-126. Elsevier 10.1016/j.sbspro.2013.05.060
Alsaker, Françoise; Ruggieri, Sabrina; Friemel, Thomas; Perren, Stephan; Sticca, F. (2012). Defenders of victims – Selection and influence effects. What role do teachers’ self-efficacy and school climate play? (Unpublished). In: SIENA 14th Biennal Meeting of the Society for Research on Adolescence: Models for Negative Relationships and Behavior Dynamics. Vancouver Canada. 07.-11.03.2012.