1. E. M. Forster “The Machine Stops ” in The Oxford and Cambridge Review (Archibald Constable 1909).
2. D. H. Keller “The Psychophonic Nurse ” in Amazing Stories (Experimenter Publishing Co. 1928).
3. Combating COVID-19—The role of robotics in managing public health and infectious diseases
4. A. Newitz “When Robot and Crow Saved East St. Louis ” Slate 29 December 2018; https://slate.com/technology/2018/12/annalee-newitz-short-story-when-robot-and-crow-saved-east-st-louis.html.
5. B. Marr Robots and drones are now used to fight COVID-19 Forbes 18 March 2020; www.forbes.com/sites/bernardmarr/2020/03/18/how-robots-and-drones-are-helping-to-fight-coronavirus/#50047b0a2a12.