@book { DeutscheProfessorenindenUSAwhrenddesErstenWeltkrieges,
    title = "Deutsche Professoren in den USA während des Ersten Weltkrieges",
    author = "Thomas {Löwer}",
    year = "2009",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640357581",
    url = "https://m.hausarbeiten.de/document/128011"
}