@book { AnwaltlicheWerbungmitMediatorundMediation,
    title = "Anwaltliche Werbung mit Mediator und Mediation",
    author = "Claus-Henrik {Horn}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1101659"
}