@book { FriedrichWilhelmFoerster18691966,
    title = "Friedrich Wilhelm Foerster (1869-1966)",
    author = "Maria {Hoschek}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1098987"
}