Tang Li 0004 Lijin Fang Hongguang Wang Obstacle-navigation control for a mobile robot suspended on overhead ground wires. 2082-2087 2004 ICARCV https://doi.org/10.1109/ICARCV.2004.1469485 conf/icarcv/2004 db/conf/icarcv/icarcv2004.html#LiFW04