@book { MaritimeHerausforderungenderNATO,
    title = "Maritime Herausforderungen der NATO",
    author = "Felix F. {Seidler}",
    year = "2015",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-06190-1",
    url = "https://www.peterlang.com/document/1049829"
}