@book { UntersuchungenzumProblemderMateriebeiAvicenna,
    title = "Untersuchungen zum Problem der Materie bei Avicenna",
    author = "Elisabeth {Blum}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1070433"
}