1. Ak O. and Kutlu B.: Comparing 2D and 3D game-based learning environments in terms of learning gains and student perceptions - British Journal of Educational Technology, 2015.
2. Alkhamisi A.O., Monowar M.M.: Rise of Augmented Reality: Current and Future Application Areas - International Journal of Internet and Distributed Systems, 2013.
3. ArUco: http://www.uco.es/investiga/grupos/ava/node/26.
4. Asmolov A. Motivating world: strategies for developing open personal education as a primary trend of the society of the knowledge in the network century. Abstracts of presentations. III international forum “Eurasian educational dialogue”, Yaroslavl, Russia, 2014 (in Russian).
5. Bacca J., Baldiris S., Fabregat R., Graf S.: Augmented Reality Trends in Education: A Systematic Review of Research and Applications - Augmented Reality Trends in Education: A Systematic Review of Research and Applications. Educational Technology & Society, 17 (4), 2014.