@article{
    ogro:05:acs,
    author = "Ogrodniczuk, Maciej",
    publisher = "Instytut Automatyki Politechniki Śląskiej",
    title = "An extension of {Ś}widziński's grammar of {P}olish",
    journal = "Archives of Control Sciences",
    year = "2005",
    number = "3",
    volume = "15",
    address = "Gliwice",
    pdf = "http://nlp.ipipan.waw.pl/Bib/ogro:05:acs.pdf",
    pages = "393--402"
}