@incollection{opitzfrank:2019b,
    author = "Opitz, Juri and Frank, Anette",
    title = "{An Argument-Marker Model for Syntax-Agnostic Proto-Role Labeling}",
    year = "2019",
    url = "https://aclweb.org/anthology/papers/S/S19/S19-1025/",
    from_page = "224",
    to_page = "234",
    publisher = "Association for Computational Linguistics",
    booktitle = "Proceedings of The Eighth Joint Conference on Lexical and Computational Semantics (*SEM 2019)"
}