1. Department of Families and Family Policies, National Center for Early Prevention German Youth Institute Munich Germany
2. Department of Psychology LMU Munich Munich Germany
3. Department of Pathopsychology University of Bamberg Bamberg Germany
4. Department of Movement and Sport Sciences, Faculty of Physical Education and Physiotherapy Vrije Universiteit Brussel Belgium
5. Institute of Human Movement Science, Sport and Health University of Graz Graz Austria
6. Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy University Hospital of Psychiatry and Psychotherapy Tuebingen Tuebingen Germany