2014 report
Encouraging Conservation in Communal Living Environments
https://www.plu.edu/sustainability/wp-content/uploads/sites/142/2015/03/plu-encouraging-conservation-in-communal-environments-research-report-1.pdf
By: A. Nakagawa, N. Wagner, A. Connors , M. Mulder, M. Luth & N. Lorax