APA (7th ed.) Citation

Viana, P., & Pinto, J. P. (2018). A collaborative approach for semantic time-based video annotation using gamification.

Chicago Style (17th ed.) Citation

Viana, Paula, and José Pedro Pinto. A Collaborative Approach for Semantic Time-based Video Annotation Using Gamification. 2018.

MLA (8th ed.) Citation

Viana, Paula, and José Pedro Pinto. A Collaborative Approach for Semantic Time-based Video Annotation Using Gamification. 2018.

Warning: These citations may not always be 100% accurate.