@book { Eventuallyyouwillbondforlife,
    title = "Eventually, you will bond for life",
    author = "Katrin Irene {Roebbeling}",
    year = "2003",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832472498",
    url = "https://m.diplom.de/document/222552"
}