@inproceedings{tjongkimsang2003conll, author = "Tjong Kim Sang, Erik F. and De Meulder, Fien", title = "Introduction to the CoNLL-2003 Shared Task: Language-Independent Named Entity Recognition", booktitle = "Proceedings of CoNLL-2003", editor = "Walter Daelemans and Miles Osborne", publisher = "Edmonton, Canada", pages = "142--147", year = "2003" }