1 Pitrus R K . J Radioanal Nucl Chem, 1988; 120(1): 133
2 Mizohata A, Mamuro T, Tsujimoto T . J Radioanal Nucl Chem, 1978; 42(1): 143
3 Beurton G, Beyssier B, Angella Y . J Radioanal Nucl Chem, 1977; 38(1-2): 257
4 Brishay T Z . J Radioanal Nucl Chem, 1973; 13(1): 87
5 Sorek H, Griffin H C . J Radioanal Nucl Chem, 1983; 79(1): 135
6 Li Xiaolin . Nuclear Techniques (in Chinese), 1991; 14(8): 454
7 Currie A . Anal Chem, 1968; 40(3): 586