@misc{indiciae6b98489e5654,
  title = {Isospin breaking in superstring-inspired E6 model.},
  author = {U Sarkar},
  year = {1989},
  doi = {10.1103/physrevd.40.170},
  url = {https://pubmed.ncbi.nlm.nih.gov/10011669/},
  note = {Source identifier: 10011669}
}