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person:(Johnston, A.)

    Optics at the Jet Propulsion Laboratory

    Johnston, A. R. / Powell, R. V. | NTRS | 1970

    Fast, accurate rangefinder

    Johnston, A. R. | NTRS | 1977

    Optical proximity detector

    Hermann, W. A. / Johnston, A. R. | NTRS | 1977

    Control techniques for an automated mixed traffic vehicle

    Meisenholder, G. W. / Johnston, A. R. | NTRS | 1977

    Differential optical proximity detector

    Johnston, A. R. / Shimada, K. / Tippins, H. H., Jr. | NTRS | 1977

    Optical traffic-sensing concept

    Johnston, A. R. / Shimada, K. | NTRS | 1978

    Ground based simulation of life sciences Spacelab experiments

    Rummel, J. A. / Alexander, W. C. / Bush, W. H. et al. | NTRS | 1978

    Automated vehicle guidance using discrete reference markers

    Johnston, A. R. / Assefi, T. / Lai, J. Y. | NTRS | 1979