共 8 条
- [1] CONSTABLE G, 1975, B I INT STAT, V106, P256
- [2] COOKE K L, 1973, Mathematical Biosciences, V16, P75, DOI 10.1016/0025-5564(73)90046-1
- [3] HETHCOTE H W, 1976, Mathematical Biosciences, V28, P335, DOI 10.1016/0025-5564(76)90132-2
- [4] HETHCOTE HW, MATH BIOSCI
- [5] REYNOLDS GH, 1975, B I INT STATIST, V106, P264
- [6] WIESNER PJ, 1980, DIS A MONTH, V27, P1
- [8] 1980, US MORBIDITY MORTALI, V28, P605