@book { EineSystematikderArztPatientInteraktion,
    title = "Eine Systematik der Arzt-Patient-Interaktion",
    author = "Peter {Nowak}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1136141"
}