1. [1] K. Dautenhahn, I. Werry, J. Rae, P. Dickerson and P. Stribling, B. Ogden: ‘Robotic Playmates: Analysing Interactive Competencies of Children with Autism Playing with a Mobile Robot,' In: K. Dautenhahn, A. Bond, L. Canamero, B. Edmonds (eds.): Socially Intelligent Agents—Creating Relationships with Computers and Robots. pp.117–124, Kluwer Academic Publishers, 2002.
2. [2] A.J.B. Trevor, H.W. Park, A.M. Howard and C.C. Kemp: “Playing with Toys: Towards Autonomous Robot Manipulation for Therapeutic Play,” Proc. of Int. Conf. on Robotics and Automation, pp.2139–2145, 2009.
3. [3] A.M. Howard, H.W. Park and C.C. Kemp: “Extracting Play Primitives for a Robot Playmate by Sequencing Low-Level Motion Behaviors,” Proc. of Int. Symposium on Robot and Human Interactive Communication, pp.360–365, 2008.
4. [4] H.W. Park and A.M. Howard: “Understanding a Child's Play for Robot Interaction by Sequencing Play Primitives Using Hidden Markov Models,” Proc. of Int. Conf. on Robotics and Automation, pp.170–177, 2010.
5. [5] H. Kozima, M.P. Michalowski and C. Nakagawa: “Keepon: A Playful Robot for Research, Therapy, and Entertainment,” International Journal of Social Robotics, vol.1, no.1, pp.3–18, 2009.