The development of leisure boredom in early adolescence: Predictors and longitudinal associations with delinquency and depression
Developmental Psychology (2015) - Comment
pubmed: 26214227  doi: 10.1037/a0039480  issn: 1939-0599  issn: 0012-1649 

Michael Spaeth, Karina Weichold, Rainer K. Silbereisen