@book { ModellierungdesBodenwasserhaushaltseinesLysimeters,
    title = "Modellierung des Bodenwasserhaushalts eines Lysimeters",
    author = "Ulrich {Birkner}",
    year = "2002",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832450199",
    url = "https://m.diplom.de/document/220169"
}