@book { IslamismusamHornvonAfrika,
    title = "Islamismus am Horn von Afrika",
    subtitle = "Al-Shabaabs Rolle für die Entwicklung Somalias",
    author = "Oliver {Stuke}",
    year = "2011",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1107743"
}