@book { CoachingModellezurDiffusioneinersozialenInnovationinderPersonalentwicklung,
    title = "Coaching – Modelle zur Diffusion einer sozialen Innovation in der Personalentwicklung",
    author = "Andreas {Geßner}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1089955"
}