Developmental trajectories of children's behavioral engagement in late elementary school: Both teachers and peers matter
Developmental Psychology (2015) - Comment
pubmed: 26192040  doi: 10.1037/a0039478  issn: 1939-0599  issn: 0012-1649 

Steven De Laet, Hilde Colpin, Eleonora Vervoort, Sarah Doumen, Karla Van Leeuwen, Luc Goossens, Karine Verschueren