Reference:

Teemu Hirsimäki, Mathias Creutz, Vesa Siivola, Mikko Kurimo, Sami Virpioja, and Janne Pylkkönen. Unlimited vocabulary speech recognition with morph language models applied to Finnish. Computer Speech and Language, 20(4):515–541, October 2006.

Suggested BibTeX entry:

@article{hirsimaki06csl,
    author = {Teemu Hirsim{\"{a}}ki and Mathias Creutz and Vesa Siivola and Mikko Kurimo and Sami Virpioja and Janne Pylkk{\"{o}}nen},
    journal = {Computer Speech and Language},
    month = {October},
    number = {4},
    pages = {515--541},
    publisher = {Elsevier},
    title = {Unlimited vocabulary speech recognition with morph language models applied to {F}innish},
    volume = {20},
    year = {2006},
}