@inproceedings{van-noord-bouma-1997-hdrug,
    title = "Hdrug. A Flexible and Extendible Development Environment for Natural Language Processing.",
    author = "van Noord, Gertjan  and
      Bouma, Gosse",
    booktitle = "Computational Environments for Grammar Development and Linguistic Engineering",
    year = "1997",
    url = "https://preview.aclanthology.org/Add-Cong-Liu-Florida-Atlantic-University-author-id/W97-1513/"
}