TY - JOUR AU - Klasen, F; Otto, C; Kriston, L TI - Risk and protective factors for the development of depressive symptoms in children and adolescents: results of the longitudinal BELLA study JO - Eur Child Adolesc Psychiatry VL - 24 PY - 2015 DO - 10.1007/s00787-014-0637-5 L3 - PubMed-ID: 25432629 SP - 695 EP - 703 N1 - et al. ER -