Exploring the Power of Electronic Word-Of-Mouth in the Services IndustrySandra Maria Correia, Hans-Ruediger Kaufmann · First published 2019Open the Tome
Handbook of Research on Managing and Influencing Consumer BehaviorHans Ruediger Kaufmann · First published 2014Open the Tome
Krisen und Wandlungen der deutschen Literatur von Wedekind bis FeuchtwangerHans Kaufmann · First published 1966Open the Tome