1. Bartneck C, Kulic D, Croft E, Zoghbi S (2008) Measurement instruments for the anthropomorphism, animacy, likeability, perceived intelligence, and perceived safety of robots. Int J Soc Robot 2009(1):71–81
2. Bethel CL (2009) Robots without faces: non-verbal social human-robot interaction. Dissertation, University of South Florida
3. Bethel CL, Bringes C, Murphy RR (2009) Non-facial and non-verbal affective expression in appearance-constrained robots for use in victim management: robots to the rescue! In: 4th ACM/IEEE international conference on human-robot interaction (HRI2009), San Diego. ACM, New York
4. Bethel CL, Salomon K, Burke JL, Murphy RR (2007) Psychophysiological experimental design for use in human-robot interaction studies. In: The 2007 international symposium on collaborative technologies and systems (CTS 2007). IEEE, Orlando
5. Bethel CL, Salomon K, Murphy RR (2009) Preliminary results: Humans find emotive non-anthropomorphic robots more calming. In: 4th ACM/IEEE international conference on human-robot interaction (HRI2009), San Diego, CA