@book { KonzepteinerCBTWBTSchulung,
    title = "Konzept einer CBT-/WBT-Schulung",
    author = "Andreas {Schoeffler}",
    year = "2000",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832425562",
    url = "https://m.diplom.de/document/218348"
}