@articleScherer_Wünderlich_Von Wangenheim_2015, title=The Value of Self-Service: Long-Term Effects of Technology-Based Self-Service Usage on Customer Retention., volume=39, number=1, journal=MIS Quarterly, publisher=MIS RC, author=Scherer, Anne and Wünderlich, Nancy and Von Wangenheim, Florian, year=2015, pages=177–200 
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