@book { IstdieTransformationgelungen,
    title = "Ist die Transformation gelungen?",
    author = "Friedrich-Christian {Schroeder} and Herbert {Küpper}",
    year = "2017",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b11693",
    url = "https://www.peterlang.com/document/1113357"
}