@book { DieInvestitionenimRahmenderStaatsausgaben,
    title = "Die Investitionen im Rahmen der Staatsausgaben",
    author = "Stefan {Kronenberger}",
    year = "2018",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b14069",
    url = "https://www.peterlang.com/document/1068597"
}