Media type: E-Article Title: Risk and protective factors for children’s and adolescents’ mental health: results of the BELLA study Contributor: Wille, Nora; Bettge, Susanne; Ravens-Sieberer, Ulrike Published: Springer Science and Business Media LLC, 2008 Published in: European Child & Adolescent Psychiatry, 17 (2008) S1, Seite 133-147 Language: English DOI: 10.1007/s00787-008-1015-y ISSN: 1018-8827; 1435-165X Origination: Footnote: