@book { VentureCapitalinDeutschlandundindenUSA,
    title = "Venture Capital in Deutschland und in den USA",
    author = "John P. {Jessen}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1093369"
}