1. 3D Measurements in Construction Robotization;Lindholm,1990
2. Mobile autonomous robot performs free-ranging AGV operation;Forster,1989
3. FROG — Free-ranging on grid: new perspectives in automated transport;Van Brussel,1988
4. A magnetic lattice lane AGV system with semi-autonomous movement;Wakaumi,1988
5. Wireless Guidance of AGVs;Kopp,1987