@book { Aktionsarten,
    title = "Aktionsarten",
    author = "Hans-Jörg {Schwenk}",
    year = "2019",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b16342",
    url = "https://www.peterlang.com/document/1057412"
}