@book { PrivilegierungvonPublicPublicPartnershipsimeuropischenVergaberecht,
    title = "Privilegierung von Public-Public-Partnerships im europäischen Vergaberecht",
    author = "Felix {Siebler}",
    year = "2013",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-03437-0",
    url = "https://www.peterlang.com/document/1047581"
}