Component-Based Development of Adaptive User Interfaces 
E. Yigitbas, K. Josifovska, I. Jovanovikj, F. Kalinci, A. Anjorin, G. Engels, in: Proceedings of the 11th ACM SIGCHI Symposium on Engineering Interactive Computing Systems (EICS 2019), 2019, pp. 13:1--13:7.

A Digital Twin-Based Multi-Modal UI Adaptation Framework for Assistance Systems in Industry 4.0 
K. Josifovska, E. Yigitbas, G. Engels, in: Proceedings of the 21st International Conference on Human-Computer Interaction (HCII 2019), Springer, LNCS, 2019, pp. 398–409.

 Reference Framework for Digital Twins within Cyber-Physical Systems 
K. Josifovska, E. Yigitbas, G. Engels, in: Proceedings of 5th International Workshop on Software Engineering for Smart Cyber-Physical Systems (SEsCPS’19), IEEE Press, 2019, pp. 25–31.

On-the-fly Usability Evaluation of Mobile Adaptive UIs through Instant User Feedback 
E. Yigitbas, I. Jovanovikj, K. Josifovska, S. Sauer, G. Engels, in: Proceedings of the 17th IFIP TC.13 International Conference on Human-Computer Interaction (INTERACT 2019), Springer, LNCS, 2019, pp. 563–567.