%0 Journal Article %T The Nottingham Obstacle Detector: Development and Evaluation %A Dodds, A. G. %A Armstrong, J. D. %A Shingledecker, C. A. %J Journal of Visual Impairment & Blindness %V 75 %N 5 %P 203-209 %@ 0145-482X %D 1981-05-01 %I SAGE Publications %~ DeepDyve