@misc{indiciae9e7ffdb3566a,
  title = {Matrix systems for posterior composite restorations.},
  author = {T M Schulein and D A Covey and W W Johnson},
  year = {1987},
  url = {https://pubmed.ncbi.nlm.nih.gov/3481288/},
  note = {Source identifier: 3481288}
}