@inproceedings{georgiev-etal-2009-feature,
    title = "Feature-Rich Named Entity Recognition for {B}ulgarian Using Conditional Random Fields",
    author = "Georgiev, Georgi  and
      Nakov, Preslav  and
      Ganchev, Kuzman  and
      Osenova, Petya  and
      Simov, Kiril",
    editor = "Angelova, Galia  and
      Mitkov, Ruslan",
    booktitle = "Proceedings of the International Conference {RANLP}-2009",
    month = sep,
    year = "2009",
    address = "Borovets, Bulgaria",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/R09-1022/",
    pages = "113--117"
}