Towards a Framework for Gamification-Based Intervention Mapping in mHealth. - Christopher Helf; Patrick Zwickl; Helmut Hlavacs; Peter Reichl (ICEC, 2015)

mHealth Stakeholder Integration: A gamification-based Framework-approach towards behavioural change. - Christopher Helf; Patrick Zwickl; Helmut Hlavacs; Peter Reichl (MoMM, 2015)

Apps for life change: Critical review and solution directions. - Christopher Helf; Helmut Hlavacs (Entertain. Comput., 2016)

Multi-Objective reward generalization: Improving performance of Deep Reinforcement Learning for selected applications in stock and cryptocurrency trading. - Federico Cornalba; Constantin Disselkamp; Davide Scassola; Christopher Helf (CoRR, 2022)

Multi-objective reward generalization: improving performance of Deep Reinforcement Learning for applications in single-asset trading. - Federico Cornalba; Constantin Disselkamp; Davide Scassola; Christopher Helf (Neural Comput. Appl., 2024)