Elam ME, Case KE. A Computer Program to Calculate Two-Stage Short-Run Control Chart Factors for (X,MR) Charts. J. Stat. Soft. [Internet]. 2006 Apr. 13 [cited 2024 Apr. 27];15(11):1-13. Available from: https://www.jstatsoft.org/index.php/jss/article/view/v015i11