@book { SocialMediaMarketingBedarfHerausforderungenundMarktpotentialfrBeratungsdienstleistungen, title = "Social Media Marketing: Bedarf, Herausforderungen und Marktpotential für Beratungsdienstleistungen", author = "Michael {Gauch}", year = "2015", publisher = "BACHELOR + MASTER PUBLISHING", address = "Hamburg, Deutschland", url = "https://m.bachelor-master-publishing.de/document/297364" }