@book { VonSocialMediazuSocialSelling,
    title = "Von Social Media zu Social Selling",
    subtitle = "Guide für erfolgreiches Personal Branding auf LinkedIn",
    author = "Sonja {Rösch}",
    year = "2025",
    publisher = "Vahlen",
    address = "München, Deutschland",
    url = "https://vahlen.openpublishing.com/document/1593659"
}