Breathing Space: Spatial Mapping of Breath and Cardiac Biofeedback for Affective State Representation and Coherence Training in Viscereality
G. Fejer, T. Holzapfel, T. Hirvonen, A.-P. Lalidis Mateo, J. Blum, M. Gaebler, B. Lenggenhager, in: Association for Computing Machinery (ACM) (Ed.), Proceedings of the 1st International Conference on Human-Computer Interaction in the Alps, ACM, New York, NY, USA, 2026, pp. 79–86.

Viscereality: Bioresponsive Virtual Reality for Box Breathing and Altered-State Experience
G. Fejer, T. Holzapfel, T. Hirvonen, A.-P. Lalidis Mateo, J. Blum, M. Gaebler, B. Lenggenhager, Viscereality: Bioresponsive Virtual Reality for Box Breathing and Altered-State Experience, OSF, 2026.

Breathing Space: Spatial Mapping of Breath and Cardiac Biofeedback for Affective State Representation and Coherence Training in Viscereality
G. Fejer, T. Holzapfel, J. Blum, T. Hirvonen, A.-P. Lalidis Mateo, M. Gaebler, B. Lenggenhager, Breathing Space: Spatial Mapping of Breath and Cardiac Biofeedback for Affective State Representation and Coherence Training in Viscereality, OSF, 2025.

Viscereality: A Bio-responsive VR System for Breath-Based Interactions and Coupled Oscillator Dynamics to Augment Altered States of Consciousness
G. Fejer, T. Holzapfel, A. Gómez-Emilsson, T. Hirvonen, R. Jermaks, J. Blum, D. Lobser, A.-P. Lalidis Mateo, D. Glowacki, M. Gaebler, B. Lenggenhager, in: Gesellschaft für Informatik e.V. (GI) (Ed.), MCI-W: 18th Workshop “Be-Greifbare Interaktion,” Gesellschaft für Informatik e.V., Bonn, 2025.