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Gottschalk, S., Rittmeier, F., &; Engels, G. (2019). Business Models of Store-Oriented Software Ecosystems: A Variability Modeling Approach. In B. Shishkov (Ed.), Business Modeling and Software Design (pp. 153–169). Lisbon: Springer International Publishing.https://doi.org/10.1007/978-3-030-24854-3_10 
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Rittmeier, F., Engels, G., &; Teetz, A. (2019). Process Weakness Patterns for the Identification of Digitalization Potentials in Business Processes. In F. Daniel,https://doi.org/10.1007/978-3-030-11641-5_42__Quan Z. Sheng, &; H. Motahari (Eds.), Business Process Management Workshops (Vol. 342, pp. 531–542). Cham: Springer International Publishing.https://doi.org/10.1007/978-3-030-11641-5_42 
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Senft, B., Rittmeier, F., Fischer, H. G., &; Oberthür, S. (2019). A Value-Centered Approach for Unique and Novel Software Applications. In Design, User Experience, and Usability. Practice and Case Studies. Cham.https://doi.org/10.1007/978-3-030-23535-2_27 
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Fischer, H. G., Rittmeier, F., Strothmann, T. F., &; Schwenniger, N. (2019). Partizipation von Beschäftigten in der Gestaltung einer digitalisierten Arbeitswelt 4.0 mittels einer Canvas-Methode. In C. K. Bosse &; K. J. Zink (Eds.), Arbeit 4.0 im Mittelstand. Berlin, Heidelberg: Springer Gabler.https://doi.org/10.1007/978-3-662-59474-2_11 
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Gottschalk, S., Rittmeier, F., &; Engels, G. (2019). Intertwined Development of Business Model and Product Functions for Mobile Applications: A Twin Peak Feature Modeling Approach. In S. Hyrynsalmi, M. Suoranta, A. Nguyen-Duc, P. Tyrväinen, &; P. Abrahamsson (Eds.), Software Business (Vol. 370, pp. 192–207). Cham: Springer International Publishing.https://doi.org/10.1007/978-3-030-33742-1_16 
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Rittmeier, F., Engels, G., &; Teetz, A. (2018). Digitalisierungspotenziale in Geschäftsprozessen effizient und effektiv erkennen (Effective and Efficient Identification of Digitalization Potentials in Business Processes). In Joint Proceedings of the Workshops at Modellierung 2018 co-located with Modellierung 2018, Braunschweig, Germany, February 21, 2018. (Vol. 2060, pp. 215--221). CEUR-WS.org.
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Fischer, H. G., Senft, B., Rittmeier, F., &; Sauer, S. (2018). A Canvas Method to Foster Interdisciplinary Discussions on Digital Assistance Systems. In A. Marcus &; W. Wang (Eds.), Design, User Experience, and Usability: Theory and Practice. Proceedings of the 20th International Conference on Human-Computer Interaktion (HCI International 2018) (Vol. 10918, pp. 711–724). Cham: Springer International Publishing.https://doi.org/10.1007/978-3-319-91797-9_49 
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