[Psychopathological problems and psychosocial impairment in children and adolescents aged 3–17 years in the German population: prevalence and time trends at two measurement points (2003–2006 and 2009–2012): results of the KiGGS study: first follow-up (KiGGS Wave 1)] - Hölling, H; Schlack, R; Petermann, F (Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz, 2014)
et al.