@misc{indiciaefca02e08027a,
  title = {A study on the esthetic restorative materials.},
  author = {H Wakai and S Takahashi and T Kanatake},
  year = {1973},
  url = {https://pubmed.ncbi.nlm.nih.gov/4510974/},
  note = {Source identifier: 4510974}
}