@book { DiePatentierbarkeitinternetbasierterGeschftsmethoden,
    title = "Die Patentierbarkeit internetbasierter Geschäftsmethoden",
    author = "Stephanie {Vendt}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1099982"
}