@misc{indiciaeb1fec3d946c0,
  title = {Attractive interaction between steps.},
  author = {J Frohn and M Giesen and M Poensgen and JF Wolf and H Ibach},
  year = {1991},
  doi = {10.1103/physrevlett.67.3543},
  url = {https://pubmed.ncbi.nlm.nih.gov/10044762/},
  note = {Source identifier: 10044762}
}