@book { TheEffectofSocialCapitalandOutcomeExpectationsonProductRecommendationsinSocialNetworksAnEmpiricalComparisonofFacebookandASmallWorld, title = "The Effect of Social Capital and Outcome Expectations on Product Recommendations in Social Networks: An Empirical Comparison of Facebook and ASmallWorld", author = "Deniz {Yildirim}", year = "2011", publisher = "Diplom.de", address = "Hamburg, Deutschland", doi = "10.3239/9783842823907", url = "https://m.diplom.de/document/228742" }