@book { VariableVergtungausZielvereinbarungen,
    title = "Variable Vergütung aus Zielvereinbarungen",
    author = "Georg Alexander Ulrich {Dombrowsky}",
    year = "2016",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-631-69894-5",
    url = "https://www.peterlang.com/document/1109748"
}