%0 Journal Article %T A ship berthing system design with four tug boats %A Van Phuoc Bui, %A Kawai, Hideki %A Kim, Young Bok %A Lee, Kwon Soon %J Journal of Mechanical Science and Technology %V 25 %N 5 %P 1257-1264 %@ 1738-494X %D 2011-05-01 %I Korean Society of Mechanical Engineers %~ DeepDyve