@book { RtselhafteBegegnungenamMeerMiasundKarlsOstseeabenteuer,
    title = "Rätselhafte Begegnungen am Meer: Mias und Karls Ostseeabenteuer",
    author = "Roswitha {Malter}",
    year = "2024",
    publisher = "via tolino media",
    address = "München, Deutschland",
    url = "https://tolino.openpublishing.com/document/1447137"
}