Extending a Gamified Mobile App with a Public Display to Encourage Walking. - Maximilian Altmeyer; Pascal Lessel; Tobias Sander; Antonio Krüger (MindTrek, 2018)

Does Physicality Enhance the Meaningfulness of Gamification?Transforming Gamification Elements to their Physical Counterparts. - Maximilian Altmeyer; Donald Degraen; Tobias Sander; Felix Kosmalla; Antonio Krüger (OZCHI, 2021)