@book { HumanResourcesBusinessProcessOutsourcing,
    title = "Human Resources - Business Process Outsourcing",
    subtitle = "Ein Ansatz zur Steigerung personalwirtschaftlicher Optimierungsstrategien",
    author = "Tanju {Tüfekciler}",
    year = "2011",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783842810907",
    url = "https://m.diplom.de/document/228365"
}