@book { AnInvestigationofAggressionandBullyingintheWorkplace,
    title = "An Investigation of Aggression and Bullying in the Workplace",
    author = "Erica {Thompson}",
    year = "2012",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656256632",
    url = "https://www.hausarbeiten.de/document/199344"
}