@book { DrittmittelforschunginderMedizin,
    title = "Drittmittelforschung in der Medizin",
    author = "Marwan {Hamdan}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1106547"
}