@article{keller-lapata-2003-using,
    title = "Using the Web to Obtain Frequencies for Unseen Bigrams",
    author = "Keller, Frank  and
      Lapata, Mirella",
    journal = "American Journal of Computational Linguistics",
    volume = "29",
    number = "3",
    year = "2003",
    url = "https://preview.aclanthology.org/fix-sig-urls/J03-3005/",
    doi = "10.1162/089120103322711604",
    pages = "459--484"
}