1. Maintaining representations of the environment of a mobile robot;Ayache;IEEE Transactions on Robotics and Automation,1989
2. Noise rejection for ultrasonic sensors in mobile robot applications;Borenstein,1992
3. Three-dimensional object recognition;Besl;Autonomous Mobile Robots,1991
4. Laser-radar and sonar based world modelling and motion control for fast obstacle avoidance of the autonomous mobile robot MOBOT-IV;Buchberger,1993
5. World modelling and position estimation for a mobile robot using ultrasonic ranging;Crowley,1989