@inproceedings{calder-1997-aligning,
    title = "On aligning trees",
    author = "Calder, Jo",
    booktitle = "Second Conference on Empirical Methods in Natural Language Processing",
    year = "1997",
    url = "https://preview.aclanthology.org/Add-Cong-Liu-Florida-Atlantic-University-author-id/W97-0308/"
}