@book { RelevanceofBuyingCenterAnalysisinIndustrialMarkets,
    title = "Relevance of Buying Center Analysis in Industrial Markets",
    author = "Markus {Gaggl}",
    year = "2014",
    publisher = "Anchor Academic Publishing",
    address = "Hamburg, Germany",
    url = "https://m.anchor-publishing.com/document/277311"
}