The circular chromatic number of series-parallel graphs of large odd girth
Discrete Mathematics
Homomorphisms from sparse graphs with large girth
Journal of Combinatorial Theory Series B
On digraph coloring problems and treewidth duality
European Journal of Combinatorics
A new line of attack on the dichotomy conjecture
Proceedings of the forty-first annual ACM symposium on Theory of computing
Decidable relationships between consistency notions for constraint satisfaction problems
CSL'09/EACSL'09 Proceedings of the 23rd CSL international conference and 18th EACSL Annual conference on Computer science logic
Graphs with bounded tree-width and large odd-girth are almost bipartite
Journal of Combinatorial Theory Series B
Database constraints and homomorphism dualities
CP'10 Proceedings of the 16th international conference on Principles and practice of constraint programming
Characterizing schema mappings via data examples
ACM Transactions on Database Systems (TODS)
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