@book { MentoringundCoachingalsMittelzurPersonalentwicklung,
    title = "Mentoring und Coaching als Mittel zur Personalentwicklung",
    author = "Paul {Boenigk}",
    year = "2013",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656486985",
    url = "https://www.hausarbeiten.de/document/232059"
}