@techreport{
    bol:czu:kup:mar:myk:prz:96,
    author = "Bolc, Leonard and Czuba, Krzysztof and Kupść, Anna and Marciniak, Małgorzata and Mykowiecka, Agnieszka and Przepiórkowski, Adam",
    title = "A Survey of Systems for Implementing {HPSG} Grammars",
    url = "http://nlp.ipipan.waw.pl/~adamp/Papers/1996-survey/",
    year = "1996",
    number = "814",
    address = "Warsaw",
    type = "{IPI PAN} Research Report",
    institution = "Institute of Computer Science, Polish Academy of Sciences"
}