1. Kanda, T., Hirano, T., Eaton, D., Ishiguro, H.: Interactive Robots as Social Partners and Peer Tutors for Children: A Field Trial. Human-Computer Interaction 19, 61–84 (2004)
2. Han, J., Jo, M., Jones, V., Jo, J.H.: Comparative Study on the Educational Use of Home Robots for Children. Journal of Information Processing Systems 4(4), 159–168 (2008)
3. Kwon, O.-H., Koo, S.-Y., Kim, Y.-G., Kwon, D.-S.: Telepresence robot system for English tutoring. IEEE Workshop on Advanced Robotics and its Social Impacts (ARSO), 152–155 (2010)
4. Lee, S., Noh, H., Lee, J., Lee, K., Lee, G.G.: Cognitive effects of robot-assisted language learning on oral skills. In: Proceedings of the Interspeech 2010 Workshop on Second Language Studies: Acquisition, Learning, Education and Technology (2010)
5. Chang, C.-W., Lee, J.-H., Chao, P.-Y., Wang, C.-Y., Chen, G.-D.: Exploring the Possibility of Using Humanoid Robots as Instructional Tools for Teaching a Second Language in Primary School. Educational Technology & Society 13(2), 13–24 (2010)