@misc{indiciae9c83e7e88412,
  title = {Parallel subtraction of matrices.},
  author = {W N Anderson and R J Duffin and G E Trapp},
  year = {1972},
  doi = {10.1073/pnas.69.9.2530},
  url = {https://pubmed.ncbi.nlm.nih.gov/16592012/},
  note = {Source identifier: 16592012}
}