@book { SpachlichesHandelnundTransaktionsanalyse,
    title = "Spachliches Handeln und Transaktionsanalyse",
    author = "Hans Harald {Hansen}",
    year = "2008",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836611862",
    url = "https://m.diplom.de/document/225718"
}