Cohen, D., Jeavons, P., & Živný, S. (2008). The expressive power of valued constraints: Hierarchies and collapses. Elsevier.
Chicago-čujuhus (17. p.)Cohen, D., P. Jeavons, juo S. Živný. The Expressive Power of Valued Constraints: Hierarchies and Collapses. Elsevier, 2008.
MLA-čujuhus (9. p.)Cohen, D., et al. The Expressive Power of Valued Constraints: Hierarchies and Collapses. Elsevier, 2008.
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