Gerber F, Gsponer T. gsbDesign: An R Package for Evaluating the Operating Characteristics of a Group Sequential Bayesian Design. J. Stat. Soft. [Internet]. 2016 Mar. 29 [cited 2024 Apr. 28];69(11):1-23. Available from: https://www.jstatsoft.org/index.php/jss/article/view/v069i11