Local Shopping Platforms - Harnessing Locational Advantages for the Digital Transformation of Local Retail Outlets: A Content Analysis. - Sören Bärsch; Lars Bollweg; Richard Lackes; Markus Siepermann; Peter Weber; Valerie Wulfhorst (Wirtschaftsinformatik, 2019)

Nothing but Cash? Mobile Payment Acceptance in Germany. - Sören Bärsch; Markus Siepermann; Richard Lackes; Valerie Wulfhorst (ICIS, 2020)

Local Retail Under Fire: Local Shopping Platforms Revisited Pre and During the Corona Crisis. - Sören Bärsch; Lars Bollweg; Peter Weber; Tim Wittemund; Valerie Wulfhorst (Wirtschaftsinformatik, 2021)

Are We Speaking the Same Language? An Analysis of German and Chinese Local Shopping Platforms. - Sören Aguirre Reid; Richard Lackes; Markus Siepermann; Valerie Wulfhorst (BIR, 2022)

Will Mobile Payment Change Germans' Love of Cash? A Comparative Analysis of Mobile Payment, Cash and Card Payment in Germany. - Sören Aguirre Reid; Richard Lackes; Markus Siepermann; Valerie Wulfhorst (BIR, 2022)