@bookHeinzel_2019, place=Paderborn University, series=CIE Working Paper Series, title=Credence Goods Markets with Heterogeneous Experts, volume=118, publisher=CIE Working Paper Series, author=Heinzel, Joachim Maria Josef, year=2019, collection=CIE Working Paper Series 

@bookHeinzel_2019, place=Paderborn University, series=CIE Working Paper Series, title=Credence Goods Markets with Fair and Opportunistic Experts, volume=119, publisher=CIE Working Paper Series, author=Heinzel, Joachim Maria Josef, year=2019, collection=CIE Working Paper Series 

@bookHeinzel_2019, place=Paderborn University, title=Bundling in a Distribution Channel with Retail Competition, publisher=CIE Working Paper Series, author=Heinzel, Joachim Maria Josef, year=2019