"A Monolithic Image Sensor for a Reading Aid for the Blind," Proc. IEEE, vol. 58, #9, Sep. 1970, Salsbury et al. |
"An Aid to the Blind: An Optical-to-Tactile Converter of Wide Images," Ciolli et al., Inst. Naz. Office, (Italy) vol. 34. |
"A Reading Eye for the Blind," Brugler et al., Optical Spectra, Feb. 1971. |
"Proceedings of IFIP Congress 80"--Tokyo--6-9 Oct. 1980, Melbourne, 14-17 Oct. 1980, pp. 951-954, North Holland. |
Publishing Co., Amsterdam N1; W. Schwewikhardt: "A Computer Based Education System for the Blind". |
Wescon Technical Papers, vol. 17, San Francisco, 11-14 Sep. 1973, pp. 1 and 2, Wescon, Los Angeles, U.S.; R. D. Melen: "A One-Hand Optacon". |