eng Xia, J W Yuan, Y J Song, M T Zhang, W Z Yang, X D He, Y Ma, L Z Zhou, C Z Xia, G X Yang, J C Wu, J X Liu, W The Cod Investigation of the Experimental Ring CSRE Accelerators and Storage Rings 2001 http://cds.cern.ch/record/914736 http://cds.cern.ch/record/914736