To cite cosa in publications use:
Bulus M, Dong N (2021). cosa: Bound Constrained Optimal Sample Size Allocation. R package version 2.1.0, https://CRAN.R-project.org/package=cosa.
Corresponding BibTeX entry:
@Manual{, title = {{cosa}: Bound Constrained Optimal Sample Size Allocation}, author = {Metin Bulus and Nianbo Dong}, note = {R package version 2.1.0}, year = {2021}, url = {https://CRAN.R-project.org/package=cosa}, }