@misc{indiciaeed3fa173953e,
  title = {Ludwig et al. reply.},
  author = {EJ Ludwig and RK Das and TB Clegg and HJ Karwowski},
  year = {1992},
  doi = {10.1103/physrevlett.69.2448},
  url = {https://pubmed.ncbi.nlm.nih.gov/10046491/},
  note = {Source identifier: 10046491}
}