@book { EVBITDieAbnahmederEVBITSystemAGB,
    title = "EVB-IT. Die Abnahme der EVB-IT System-AGB",
    author = "",
    year = "2017",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    url = "https://www.hausarbeiten.de/document/380906"
}