@book { DasWettbewerbsverbotimVerbandsundKartellrecht,
    title = "Das Wettbewerbsverbot im Verbands- und Kartellrecht",
    author = "Peer {Wagner}",
    year = "2014",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-05011-0",
    url = "https://www.peterlang.com/document/1048948"
}