Cohen, D., Jeavons, P., Thorstensen, E., & Živný, S. (2013). Tractable combinations of global constraints. Springer.

Cohen, D., P. Jeavons, E. Thorstensen, and S. Živný. Tractable Combinations of Global Constraints. Springer, 2013.

Cohen, D., et al. Tractable Combinations of Global Constraints. Springer, 2013.