@misc{indiciaea3040fe191c0,
  title = {N=4 string is the same as the N=2 string.},
  author = {W Siegel},
  year = {1992},
  doi = {10.1103/physrevlett.69.1493},
  url = {https://pubmed.ncbi.nlm.nih.gov/10046236/},
  note = {Source identifier: 10046236}
}