@book { TypedFeatureStructureGrammars,
    title = "Typed Feature Structure Grammars",
    author = "Anders {Sogaard} and Petter {Haugereid}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1106445"
}