%0 Journal Article %T CCD Photometry of Asteroids 168, 206 and 506 %A Wang, Xiao-Bin %A Gu, Sheng-Hong %J Discover Space %V 93 %N 4 %P 275-280 %@ 2948-2941 %D 2003-12-01 %I Kluwer Academic Publishers %~ DeepDyve