Schoolwork engagement and burnout among Finnish high school students and young adults: profiles, progressions, and educational outcomes
Developmental Psychology (2014) - Comment
pubmed: 23895174  doi: 10.1037/a0033898  issn: 1939-0599  issn: 0012-1649 

Heta Tuominen-Soini, Katariina Salmela-Aro