In the proceedings of the 3rd Language & Technology Conference, Poznań, Poland.
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BibTeX entry:
@InProceedings{prz:buc:07, author = "Adam Przepiórkowski and Aleksander Buczyński", title = "♠: Shallow Parsing and Disambiguation Engine", booktitle = "Proceedings of the 3rd Language \& Technology Conference", address = "Poznań", year = 2007}