Dirdaitė, Ieva, and Danutė Krapavickaitė. “Application of Balanced Sampling, Non-Response and Calibrated Estimator”. Lithuanian Journal of Statistics 55, no. 1 (December 20, 2016): 81–90. Accessed April 11, 2025. https://www.journals.vu.lt/statisticsjournal/article/view/13870.