Triadic relationships in the context of services for animal companions
J. Rötzmeier-Keuper, J. Hendricks, N. Wünderlich, G. Schmitz, Journal of Business Research (2018) 295--303.

How to Handle Dilemmas in Triadic Service Relationships – An Exploratory Study.
J. Rötzmeier-Keuper, N. Wünderlich, in: Proceedings of the 2017 Frontiers in Service Conference, 2017.

Customer collectives in healthcare: The transformative potential of service to overcome consumer vulnerability
J. Rötzmeier-Keuper, N. Wünderlich, in:  Proceedings of the 39th Annual Macromarketing Conference, 2014.

 Interdependent Relationships Between and among Service Providers and Customer Collectives.
J. Rötzmeier-Keuper, N. Wünderlich, in: Proceedings of the AMA SERVSIG International Service Research Conference, 2014.