@misc{indiciae283bbc907462,
  title = {Staircase functions, spectral rigidity, and a rule for quantizing chaos.},
  author = {R Aurich and F Steiner},
  year = {1992},
  doi = {10.1103/physreva.45.583},
  url = {https://pubmed.ncbi.nlm.nih.gov/9907021/},
  note = {Source identifier: 9907021}
}