@book { Simpliciana,
    title = "Simpliciana",
    author = "Peter {Heßelmann}",
    year = "2011",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    doi = "10.3726/978-3-0351-0076-1",
    url = "https://www.peterlang.com/document/1052091"
}