Sutter, Matthias Max Planck Institute for Research on Collective Goods, Max Planck Society;
https://doi.org/10.1016/j.geb.2008.02.014 (Any fulltext)
Sutter, M., & Strassmair, C. (2009). Communication, cooperation and collusion in team tournaments—An experimental study. Games and Economic Behavior, 66, 506-525.