1. C. Breazeal, A. Takanishi, T. Kobayashi, Social Robots that Interact with People, Chapter 58 (Springer, 2008), pp. 1349–1370
2. C. Breazeal, Toward sociable robots. Robot. Auton. Syst. 42(3–4), 167–175 (2003) (Socially Interactive Robots)
3. Reem: Full-Size Humanoid Service Robot. http://pal-robotics.com/en/products/reem/ . Last accessed Aug 2016
4. F. Lier, S. Schulz, I. Lütkebohle, Continuous Integration for Iterative Validation of Simulated Robot Models (Springer, Berlin, Heidelberg, 2012), pp. 101–112
5. Socibot. https://www.engineeredarts.co.uk/socibot/ . Last accessed Apr 2016