@misc{indiciae4a30d120c6da,
  title = {Surface hardness development in light-cured composites.},
  author = {D C Watts and O M Amer and E C Combe},
  year = {1987},
  doi = {10.1016/s0109-5641(87)80085-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/3479364/},
  note = {Source identifier: 3479364}
}