@book { EntwicklungeinesTheaterManagementinformationssystems,
    title = "Entwicklung eines Theater-Managementinformationssystems",
    author = "Petra {Schneidewind}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1090572"
}