@book { Delazarzuelaalcine,
    title = "De la zarzuela al cine",
    author = "Max {Doppelbauer} and Kathrin {Sartingen}",
    year = "2021",
    publisher = "Meidenbauer",
    address = ", Germany",
    url = "https://www.peterlang.com/document/1136398"
}