@book { SommertrumeinAzurblau,
    title = "Sommerträume in Azurblau",
    author = "Juli {Sand} and Marie {Winter} and Carla {Blumberg}",
    year = "2022",
    publisher = "dotbooks Verlag",
    address = "München, Deutschland",
    url = "https://m.dotbooks.de/document/1252703"
}