To cite blockRAR in publications use:

  Thevaa Chandereng, Rick Chappell (2019). Robust Response-Adaptive
  Randomization Design. arXiv:1904.07758. URL
  https://arxiv.org/abs/1904.07758.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Robust Response-Adaptive Randomization Design},
    author = {Thevaa Chandereng and Rick Chappell},
    journal = {arXiv preprint arXiv:1904.07758},
    year = {2019},
    doi = {10.48550/arXiv.1904.07758},
    url = {https://arxiv.org/abs/1904.07758},
  }