@book { EineempirischeAnalysederAnreizezurinformellenPflege,
    title = "Eine empirische Analyse der Anreize zur informellen Pflege",
    author = "Christian {Maier}",
    year = "2015",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-04716-5",
    url = "https://www.peterlang.com/document/1067520"
}