@book { MaritimeWirtschaftTheorieEmpirieundPolitik,
    title = "Maritime Wirtschaft – Theorie, Empirie und Politik",
    author = "Hans-Dietrich {Haasis} and Holger {Kramer} and Burkhard {Lemper}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1135634"
}