@misc{indiciae18ff2b715202,
  title = {[Relation between clasp strength and retention].},
  author = {R Marxkors and H Meiners and U Schwensfeier},
  year = {1980},
  url = {https://pubmed.ncbi.nlm.nih.gov/6998769/},
  note = {Source identifier: 6998769}
}