Drivers of the synergy between price cuts and store flyer advertising at supermarkets and discounters Widdecke, Kai Arne Keller, Wiebke Gedenk, Karen Deleersnyder, Barbara 2022 - Forschungsinformationssystem der UHH
Price Promotions and Popular Events Keller, Wiebke Deleersnyder, Barbara Gedenk, Karen 2018 - Forschungsinformationssystem der UHH