1. Brooks, R. 1983. Solving the find-path problem by good representation of free space. IEEE Sys., Man Cyber. SMC-13: 190–197.
2. Brooks, R. 1984 Aug. 20–23, Kyoto, Japan. Aspects of mobile robot visual map making. 2nd Int. Symp. Robotics Res.
3. Buckley, C. 1985. The application of continuum methods to path planning. Ph.D. Thesis (in progress). Stanford University, Department of Mechanical Engineering.
4. Chatila, R. 1981. Système de navigation pour un robot mobile autonome: modélisation et processus décisionnels. Thèse de Docteur-Ingénieur. Université Paul Sabatier. Toulouse, France.
5. Hogan, N. 1984 June 6–8, San Diego, California. Impedance control: an approach to manipulation. 1984 Amer. Control Conf.