@misc{indiciaee09e86e83116,
  title = {Two interacting particles in the Harper model.},
  author = {DL Shepelyansky},
  year = {1996},
  doi = {10.1103/physrevb.54.14896},
  url = {https://pubmed.ncbi.nlm.nih.gov/9985530/},
  note = {Source identifier: 9985530}
}