Erland Jungert, Peter D. Holmes. A Hierarchical Knowledge Structure for Heuristic Path Planning. In Takeo Kanade, Frans C. A. Groen, Louis O. Hertzberger, editors, Intelligent Autonomous Systems 2, An International Conference, Amsterdam, The Netherlands, 11-14 December 1989. pages 230-240, IOS Press, 1989.
Abstract is missing.