Spatiality and Semantics - Towards Understanding Content Placement in Mixed Reality. CHI 2023 - Extended Abstracts of the 2023 CHI Conference on Human Factors in Computing Systems, 254:1--254:8, Association for Computing Machinery (ACM), New York, United States of America, Apr 19, 2023. [PUMA: Augemented FIS_scads Study User Design Reality, Mixed Content Layout, topic_visualcomputing Space, Organization,]