@book { PerformanceMeasurement,
    title = "Performance Measurement",
    author = "Ronald {Gleich} and Anna {Quitt} and Arnd {Görner} and Werner {Gleißner} and Laura {Schlecht}",
    year = "2021",
    publisher = "Vahlen",
    address = "München, Deutschland",
    url = "https://vahlen.openpublishing.com/document/1219154"
}