Reference:

Kai Puolamäki and Samuel Kaski. Bayesian solutions to the label switching problem. In Advances in Intelligent Data Analysis VIII, Lecture Notes in Computer Science, pages 381–392, Berlin / Heidelberg, 2009. Springer.

Suggested BibTeX entry:

@inproceedings{Puolamaki09ida,
    address = {Berlin / Heidelberg},
    author = {Kai Puolam\"aki and Samuel Kaski},
    booktitle = {Advances in Intelligent Data Analysis VIII},
    pages = {381--392},
    publisher = {Springer},
    series = {Lecture Notes in Computer Science},
    title = {Bayesian Solutions to the Label Switching Problem},
    year = {2009},
}