@book { EvaluierungvonRequirementManagementSystemeninderSoftwareEntwicklung,
    title = "Evaluierung von Requirement Management Systemen in der Software Entwicklung",
    author = "Özgür {Hazar}",
    year = "2010",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836645010",
    url = "https://m.diplom.de/document/227719"
}