1. Sequential Poisson Sampling;Ohlsson;Research Report from Institute of Actuarial Mathematics and Mathematical Statistics at Stockholm University,1995
2. Asymptotic Theory for order sampling;Rosén;J. Stat. Plan. Inf.,1997
3. Model Assisted Survey Sampling;Särndal,1992
4. List sequential sampling with equal or unequal probabilities without replacement;Sunter;Appl. Statist.,1977
5. Introduction to Variance Estimation;Wolter,1985