Book Section

Hebrard, E. and Marx, D. and O’Sullivan, B. and Razgon, Igor (2009) Constraints of difference and equality: a complete taxonomic characterisation. In: Gent, I.P. (ed.) Principles and Practice of Constraint Programming - CP 2009. Lecture Notes in Computer Science 5732. Berlin, Germany: Springer Verlag, pp. 424-438. ISBN 9783642042447.