@misc{indiciaeedd73365c1cf,
  title = {Nonlinear impurity modes in a lattice.},
  author = {YS Kivshar},
  year = {1993},
  doi = {10.1103/physrevb.47.11167},
  url = {https://pubmed.ncbi.nlm.nih.gov/10005251/},
  note = {Source identifier: 10005251}
}