共 4 条
[1]
Raikov D, 1937, CR ACAD SCI URSS, V14, P9
[2]
Rao C. R., 1964, SANKHYA A, V26, P295
[3]
RAO CR, 1963, INT S DISCRETE DISTR, P320
[4]
Teicher H, 1954, SKAND AKTUARIETIDSKR, V37, P1