Brandseth, O. L., M. T. Håvarstein, H. B. Urke, E. Haug, and T. Larsen. “Mental Well-Being Among Students in Norwegian Upper Secondary Schools: The Role of Teacher Support and Class Belonging”. Norsk Epidemiologi, Vol. 28, no. 1-2, May 2019, doi:10.5324/nje.v28i1-2.3050.