Saksvik, P. Øystein, Hammer, T. H. and Nytrø, K. (2013) “Social Relations at the Collective Level: The Meaning and Measurement of Collective Control in Research on the Psychosocial Work Environment”, Nordic Journal of Working Life Studies, 3(3), pp. 30–46. doi: 10.19154/njwls.v3i3.3010.