Infrared locator for orientation of the blind

statement of authorship
A.Girilov [i.e. A.Gavrilov] and A.Teresk
source
Electronics world
year of publication
pages
July, p. 48 : ill
Gavrilov, A., Teresk, A. Infrared locator for orientation of the blind // Electronics world (2004), July, p. 48 : ill.