References
- Kendall , M. and Stuart , A. 1979 . The Advanced Theory of Statistics, , 4th ed. , Vol. 2 , New York : Macmillan .
- Kolmogorov , A. N. 1950 . “Unbiased Estimates,” . Izvestija Akademii Nauk Armjanskoǐ SSR, Serija Matematika , 14 : 303 – 326 . (American Mathematical Society Translation 98)
- Lieberman , G. J. and Resnikoff , G. J. 1955 . “Sampling Plans for Inspection by Variables,” . Journal of the American Statistical Association , 50 : 457 – 516 .