@article{optimalalphabetforsingletextcompression,
  title = {Optimal alphabet for single text compression},
  author = {Armen E. Allahverdyan and Andranik Khachatryan},
  year = {2022},
  eprint = {2201.05234},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2201.05234v2},
}