@book { BilderSEO2018SuchmaschinenoptimierungfrBilder,
    title = "Bilder SEO 2018 - Suchmaschinenoptimierung für Bilder",
    author = "Martin {Mißfeldt}",
    year = "2017",
    publisher = "via tolino media",
    address = "München, Deutschland",
    url = "https://tolino.openpublishing.com/document/1011502"
}