TY - Chin. Phys. Lett. A1 - SUN Cheng-Yi, ZHANG De-Hai T1 - Conjecture on Avoidance of Big Crunch Y1 - 2006-12-01 JF - Chinese Physics Letters JO - Chin. Phys. Lett. SP - 3388-3390EP - 3390 VL - 23 IS - 12 UR - https://cpl.iphy.ac.cn N1 - ER -