@book { UsabilityDesignforLocationBasedMobileServicesinWirelessMetropolitanNetworks,
    title = "Usability Design for Location Based Mobile Services in Wireless Metropolitan Networks",
    author = "Etienne {Samii}",
    year = "2007",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836606639",
    url = "https://m.diplom.de/document/229038"
}