@misc{indiciae7a5cc94e6f64,
  title = {Nonlinear sigma model and static holes.},
  author = {K Bitar and E Manousakis},
  year = {1991},
  doi = {10.1103/physrevb.43.2615},
  url = {https://pubmed.ncbi.nlm.nih.gov/9997551/},
  note = {Source identifier: 9997551}
}