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R. Tutul and N. Pinkwart. Design and Evaluation of a Sound-Driven Robot Quiz System with Fair First-Responder Detection and Gamified Multimodal Feedback. Robotics, volume 14, issue 9, 2025.

R. Tutul, I. Buchem, A. Jakob, and N. Pinkwart. Enhancing Learner Motivation, Engagement, and Enjoyment Through Sound-Recognizing Humanoid Robots in Quiz-Based Educational Games. Digital Interaction and Machine Intelligence. MIDI 2023. Lecture Notes in Networks and Systems, Springer, volume 1076, pages 123-132, 2024.

R. Tutul, A. Jakob, I. Buchem, and N. Pinkwart. Sound Recognition with a Humanoid Robot for a Quiz Game in an Educational Environment. Tagungsband DAGA 2023 - 49. Jahrestagung für Akustik 06. - 09. März 2023, Hamburg, pages 938-941, 2023.

I. Buchem, R. Tutul, A. Jakob, and N. Pinkwart. Non-verbal Sound Detection by Humanoid Educational Robots in Game-Based Learning. Multiple-Talker Tracking in a Buzzer Quiz Game with the Pepper Robot. Robotics in Education. RiE 2023. Lecture Notes in Networks and Systems, Springer, volume 747, 2023.