1 Twin P J, Nyako B M, Nelson A H et al . Phys Rev Lett, 1986; 57: 811
2 Khoo T L, Carpenter M P, Lauritsen T et al . Phys Rev Let, 1996; 76: 1583
3 Brinkman M J, Becker J A, Lee I Y et al . Phys Rev, 1996; C53: R1461
4 Becker J A, Henry E A, Kuhnert A, et al . Phys Rev, 1992; C46: 889
5 Drapper J E, Stephens F S, Deleplanque M A et al . Phys Rev, 1991; C42: R1791
6 Xing Z, Chen X Q . High Enger Phys & Nucl Phys (in Chinese), 1991; 15: 1020
7 Zeng J Y, Meng J, Wu C S et al . Phy Rev, 1991; C44: R1745
8 Wu C S, Zeng J Y, Xing Z et al . Phys Rev, 1992; C45: 261
9 Xu Fu-Rong, Hu Ji-Min . Phys Rev, 1994; C49: 1449
10 Piepenbring R, Protasov K V . Z Phys, 1993; A345: 7
11 Zeng J Y, Lei Y A, Wu W Q et al . Commun Theor Phys, 1995; 24: 425
12 Bohr A, Mottelson B R . Nuclear structure, Vol II, Massachusetts : Benjamin , 1975
13 Harris S M . Phys Rev, 1965; 138B: 509
14 Klein A, Dreizler R M, Das T K . Phys Lett, 1970; 31B: 333
15 Scharff-Goldhaler G, Dove C, Goodman A L . Ann Rev Nucl Sci, 1976; 26: 239
16 Wu C S, Zeng J Y . Commu Theor Phys, 1987; 5: 51
17 Huang H X, Wu C S, Zeng J Y . Phys Rev, 1989; C39: 1617
18 Holmberg P, Lipas P O . Nucl Phys, 1968; A117: 552
19 Beausang C W, Henry E A, Becker J A et al . Z Phys, 1990; A335: 325
20 Brinkman M J, Kuhnert A, Henry E A et al . Z Phys, 1996; A336: 115
21 McNabb D P, Baldsiefen G, Bernstein L A et al . Phys Rev, 1996; C48: R541
22 Clark R M, Wadsworth R, Hauschild K et al . Phys Rev, 1994; C50: 1222
23 Moore E F, Liang Y, Janssens R V F et al . Phys Rev, 1993; C48: 2261
24 Henry E A, Kuhnert A, Becker J A et al . Z Phys, 1991; A338: 469
25 Becker J A, Roy N, Henry E A et al . Phys Rev, 1990; C41: R9
26 Janssens R V F, Carpenter M P, Drigert M W et al . Nucl Phys, 1990; A250: 75c
27 Cullen D M, Riley M A, Alderson A et al . Nucl Phys, 1990; A520: 105c
28 Hughes J R, Becker J A, Brinkman M J et al . Phys Rev, 1994; C50: R1265