Usage of Self-Motivating Achievements to Collect Accessibility Information of Indoor Environments.. In Margherita Antona, and Constantine Stephanidis (Eds.), Universal Access in Human-Computer Interaction - 17th International Conference, UAHCI 2023, Held as Part of the 25th HCI International Conference, HCII 2023, Proceedings, 477--488, Springer Nature Switzerland, Dortrecht u. a., Switzerland, 2023. [PUMA: area_responsibleai FIS_scads accessibility, crowdsourcing, disabilities geographic inclusive indoor information, maps, mobility, people volunteered with]