On Past Extropy and Negative Cumulative Extropy Properties of Ranked Set Sampling and Maximum Ranked Set Sampling with Unequal Samples. Stat., optim. inf. comput. [Internet]. 2023 Apr. 21 [cited 2026 Apr. 23];11(3):740-54. Available from: https://www.iapress.org/index.php/soic/article/view/1453