@article{SS09CONS,
    author = {Samer, Marko and Szeider, Stefan},
    title = {Tractable Cases of the Extended Global Cardinality Constraint},
    journal = {Constraints},
    publisher = {Springer-Verlag},
    issn = {1383-7133},
    note = {To appear}
}

@inproceedings{SS08CATS,
    author = {Samer, Marko and Szeider, Stefan},
    title = {Tractable Cases of the Extended Global Cardinality Constraint},
    booktitle = {Theory of Computing 2008, Proceedings of the 14th Computing: The Australasian Theory Symposium (CATS'08)},
    editor = {Harland, James and Manyem, Prabhu},
    publisher = {Australian Computer Society},
    series = {CRPIT},
    volume = {77},
    pages = {67--74},
    year = {2008},
    isbn = {978-1-920682-58-3}
}