@book { DiversityResponsibilityPublicRelations,
    title = "Diversity. Responsibility. Public Relations",
    author = "Andreas {Brüser}",
    year = "2012",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656291978",
    url = "https://www.hausarbeiten.de/document/203095"
}