@misc{indiciae19ad13030df2,
  title = {Duality in compactified string theory.},
  author = {NP Chang and DX Li},
  year = {1990},
  doi = {10.1103/physrevd.42.511},
  url = {https://pubmed.ncbi.nlm.nih.gov/10012868/},
  note = {Source identifier: 10012868}
}