1. European Commission. 2012 Public attitudes towards robots Special Eurobarometer 382 September 2012. See http://ec.europa.eu/COMMFrontOffice/PublicOpinion/index.cfm/ResultDoc/download/DocumentKy/56814.
2. European Commission. 2015 Autonomous systems Special Eurobarometer 427 June 2015. See http://ec.europa.eu/public_opinion/archives/ebs/ebs_427_en.pdf.
3. Robinette P Wagner AR Howard AM. 2013 Building and maintaining trust between humans and guidance robots in an emergency. In Trust and Autonomous Systems: 2013 AAAI Spring Symp. Stanford CA 25–27 March pp. 78–83. Palo Alto CA: AAAI Press. See https://www.aaai.org/ocs/index.php/SSS/SSS13/paper/download/5755/6007.
4. House of Commons Science and Technology Committee. 2016 Robotics and artificial intelligence HC 145. See http://www.publications.parliament.uk/pa/cm201617/cmselect/cmsctech/145/145.pdf.