Baeksuk Chu Kyungmo Jung Youngsu Chu Daehie Hong Myo-Taeg Lim Shinsuk Park Yongkwun Lee Sung-Uk Lee Min Chul Kim Kang Ho Ko Robotic automation system for steel beam assembly in building construction. 38-43 2009 ICARA http://doi.ieeecomputersociety.org/10.1109/ICARA.2000.4803937 conf/icara/2009 db/conf/icara/icara2009.html#ChuJCHLPLLKK09