@book { MozartinMannheim,
    title = "Mozart in Mannheim",
    subtitle = "Station auf dem Weg eines musikalischen Genies",
    author = "Hermann {Jung}",
    year = "2007",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1101624"
}