@inproceedings{schwitter-2021-grammar,
    title = "The Grammar of {PENG} {ASP} Explained",
    author = "Schwitter, Rolf",
    editor = "Kuhn, Tobias  and
      Spreeuwenberg, Silvie  and
      Hoppenbrouwers, Stijn  and
      Fuchs, Norbert E.",
    booktitle = "Proceedings of the Seventh International Workshop on Controlled Natural Language (CNL 2020/21)",
    month = sep,
    year = "2021",
    address = "Amsterdam, Netherlands",
    publisher = "Special Interest Group on Controlled Natural Language",
    url = "https://preview.aclanthology.org/jlcl-multiple-ingestion/2021.cnl-1.5/"
}