Rahwan, T., T. Michalak, E. Elkind, P. Faliszewski, J. Sroka, M. Wooldridge, and N. Jennings. “Constrained Coalition Formation”. Proceedings of the AAAI Conference on Artificial Intelligence, vol. 25, no. 1, Aug. 2011, pp. 719-25, doi:10.1609/aaai.v25i1.7888.