[Technic and usefulness of electronic guidance devices for the blind].
D000293:Adolescent; D000328:Adult; D001766:Blindness / Q000534:rehabilitation*; D004581:Electronics; D005260:Female; D006801:Humans; D007834:Lasers; D008124:Locomotion; D008297:Male; D012656:Self-Help Devices / Q000295:instrumentation; D014465:Ultrasonics
Technik und praktische Brauchbarkeit elektronischer Blindenführgeräte.