@misc{indiciaede6f78941b6b,
  title = {Difficulties with unification.},
  author = {A K Singal},
  year = {1995},
  doi = {10.1073/pnas.92.25.11407},
  url = {https://pubmed.ncbi.nlm.nih.gov/11607608/},
  note = {Source identifier: 11607608}
}