Textbook Gamification - Transforming Exercises into Playful Quests by using Webble Technology. - Susanne Friedemann; Lisa Baumbach; Klaus P. Jantke (CSEDU (2), 2015)

Textbook Gamification: Methods and Technologies. - Susanne Friedemann; Klaus P. Jantke; Lisa Baumbach (CSEDU (Selected Papers), 2015)