A model for assessing and sorting virtual locomotion techniques according to their fidelity to real walking -- The WalkingSeat: a Leaning Interface for Locomotion in Virtual Environments -- Ubiquity of VR: Towards Investigating Ways of Interrupting VR Users to Obtain their Attention in Public Spaces -- Rhythmic Stimuli and Time Experience in Virtual Reality -- A Mixed Reality Setup for Prototyping Holographic Cockpit Instruments -- AR Patterns: Event-driven Design Patterns in Creating Augmented Reality Experiences -- Collaborative VR Anatomy Atlas -- An open-source fine-grained benchmarking platform for wireless virtual reality -- 3D molecules visualization with XRmol: an AR web tool for mobile devices -- Correlations of Flow, Usability, Workload and Presence with Task Performance in a Spatially Distributed Memory Task -- Evaluating the Worker Technology Acceptance of a Mixed Reality Technical Documentation -- Changes in concentration performance after short-term virtual reality training in e-athletes -- Biophilic Design of Virtual Workplaces: Effect of Animations on User Attention -- XR for First Responders: Concepts, Challenges and Future Potential of Immersive Training.