1. Henrich D, Wurll C, Worn H. On-line path planning by heuristic hierarchical search. IECON’98. In: Proceedings of the 24th annual conference of the IEEE industrial electronics society. New York, NY, USA; 1998. p. 2239–44.
2. Song KT, Tai IC. Fuzzy navigation of a mobile robot. IEEE/RSI. In: International conference on intelligent robots and systems; 1992.
3. Adaptive evolutionary planner/navigator for mobile robots;Xiao;IEEE Trans Evol Comput,1997
4. Wehn HW, Belanger PR. Ultrasound-based robot position estimation. IEEE Trans on Rob Autom 1997;13.
5. Autonomous robot navigation using adaptive potential fields;Arambula Cosio;Math Comput Modell,2004