Reference:

Sami Virpioja, Ville T. Turunen, Sebastian Spiegler, Oskar Kohonen, and Mikko Kurimo. Empirical comparison of evaluation methods for unsupervised learning of morphology. Traitement Automatique des Langues, 52(2):45–90, 2011.

Suggested BibTeX entry:

@article{virpioja2011tal,
    author = {Sami Virpioja and Ville T. Turunen and Sebastian Spiegler and Oskar Kohonen and Mikko Kurimo},
    journal = {Traitement Automatique des Langues},
    language = {eng},
    number = {2},
    pages = {45--90},
    publisher = {ATALA},
    title = {Empirical Comparison of Evaluation Methods for Unsupervised Learning of Morphology},
    volume = {52},
    year = {2011},
}