@misc{indiciae52cec5cfc263,
  title = {Toward standardardized VCG systems.},
  author = {P M Rautaharju},
  year = {1977},
  doi = {10.1161/01.cir.55.3.556},
  url = {https://pubmed.ncbi.nlm.nih.gov/837495/},
  note = {Source identifier: 837495}
}