@book { StaatsausgabenundcrowdingoutEffekte,
    title = "Staatsausgaben und crowding-out-Effekte",
    author = "Christian {Schiller}",
    year = "2018",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b13753",
    url = "https://www.peterlang.com/document/1068329"
}