@book { 20MilliardenJahreinzweidreiViertelstndchenLiteraturQuickie,
    title = "20 Milliarden Jahre in zwei, drei Viertelstündchen - Literatur-Quickie",
    subtitle = "Band 31",
    author = "Ulrich {Holbein}",
    year = "2013",
    publisher = "dotbooks Verlag",
    address = "München, Deutschland",
    doi = "10.3239/9783955202040",
    url = "https://www.dotbooks.de/document/211186"
}