@book { JahrbuchderSicherheitswirtschaft2015,
    title = "Jahrbuch der Sicherheitswirtschaft 2015",
    author = "Bartosz {Makowicz} and Rolf {Stober}",
    year = "2017",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b10918",
    url = "https://www.peterlang.com/document/1054864"
}