| 2025 | VR | Accelerating the Development of Machine Voice User Interfaces with Immersive Environments. | Polina Hfner, Frithjof A. I. Eisenlohr, Felix Longge Michels, Abhijit Karande, Michael Grethler |
| 2025 | VR | PolyVRGeo: Immersive Engineering Toolkit for Deep Geothermal Energy. | Victor Hfner, Polina Hfner, Felix Longge Michels, Florian Bauer, Michael Grethler |
| 2024 | CSEDU | An Adaptive Learning Environment for Industry 4.0 Competencies Based on a Learning Factory and Its Immersive Digital Twin. | Polina Hfner, Viktoria Bergmann, Victor Hfner, Felix Longge Michels, Michael Grethler, Abhijit Karande |
| 2024 | CSEDU | A Framework for Intelligent Virtual Reality Tutoring System Using Semantic Web Technology. | Victor Hfner, Tengyu Li, Felix Longge Michels, Polina Hfner, Haoran Yu, Jivka Ovtcharova |
| 2024 | VR | Semantic Web-Enabled Intelligent VR Tutoring System for Engineering Education: A Theoretical Framework. | Victor Hfner, Tengyu Li, Felix Longge Michels, Polina Hfner, Haoran Yu, Jivka Ovtcharova |
| 2015 | VR | TechViz XL helps KITs Formula Student car "become alive". | Benjamin Bayart, Alexis Vartanian, Polina Hfner, Jivka Ovtcharova |
| 2014 | HCI | Experiencing Physical and Technical Phenomena in Schools Using Virtual Reality Driving Simulator. | Polina Hfner, Victor Hfner, Jivka Ovtcharova |
| 2013 | EGVE | Methodology for Immersive Emotional Assessment of Virtual Product Design by Customers. | Jurica Katicic, Polina Hfner, Jivka Ovtcharova |
| 2013 | IC3K | Semi-automated Ontology Population from Building Construction Drawings. | Polina Hfner, Victor Hfner, Hendro Wicaksono, Jivka Ovtcharova |
| 2013 | IC3K | Ontology Development towards Expressive and Reasoning-enabled Building Information Model for an Intelligent Energy Management System. | Hendro Wicaksono, Preslava Dobreva, Polina Hfner, Sven Rogalski |
| 2013 | IC3K | Methodology to Develop Ontological Building Information Model for Energy Management System in Building Operational Phase. | Hendro Wicaksono, Preslava Dobreva, Polina Hfner, Sven Rogalski |