@inbook{d248d1654a204903902aeea695175cbb,
title = "Using ultrasonic sensors to assist a wheelchair user",
author = "David Sanders and Ian Stott and Mike Goodwin and Tony Poland and Howard Cawte",
year = "1994",
language = "English",
isbn = "9780947719692",
pages = "415 -- 422",
booktitle = "Proceedings 27th ISATA - International Symposium on Automotive Technology and Automation, 1994 Aachen, Germany, 31st October - 4 November Robotics, motion and machine vision",
publisher = "Automotive Automation ",
}