• [1]

    童国梁等人,高能物理与核物理,15 (1991), 865.[2] A. Arefiev et al., Proportional Chamber For Barrel Hadron Calorimeter of the L3 Experime-nt, to be published.[3] H. S. Chen, NIM, A256(1987), 261.[4] J.A. Bakken et al., NIM, A254(1987), 535.[5] C.Chen et al., NIM,A272 (1988), 713