@misc{indiciae89bdd45aa946,
  title = {Second-order quadrupolar echo.},
  author = {RD Walker and BC Gerstein},
  year = {1985},
  doi = {10.1103/physrevb.31.3167},
  url = {https://pubmed.ncbi.nlm.nih.gov/9936189/},
  note = {Source identifier: 9936189}
}