@book { AnalysisoftheTechnologicalImplementationofAutonomousRobotsintheHotelIndustry,
    title = "Analysis of the Technological Implementation of Autonomous Robots in the Hotel Industry",
    author = "",
    year = "2023",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    url = "https://m.diplom.de/document/1342476"
}