1. Cassel, C.M., Särndal, C.E., Wretman, J.H.: Some results on generalized difference estimation and generalized regression estimation for finite populations. Biometrika 63(3), 615–620 (1976)
2. Särndal, C.-E., Swensson, B., Wretman, J.: Model Assisted Survey Sampling. Springer, New York (2003)
3. Fuller, W.A.: Sampling Statistics. John Wiley & Sons, Hoboken, New Jersey (2011)
4. Horvitz, D.G., Thompson, D.J.: A generalization of sampling without replacement from a finite universe. Journal of the American statistical Association 47(260), 663–685 (1952)
5. Tibshirani, R.: Regression shrinkage and selection via the lasso. Journal of the Royal Statistical Society: Series B (Methodological) 58(1), 267–288 (1996)