@misc{indiciaebe07c215867e,
  title = {Comparative studies on collagen.},
  author = {J Pikkarainen and E Kulonen},
  year = {1968},
  doi = {10.1007/bf02065209},
  url = {https://pubmed.ncbi.nlm.nih.gov/5721059/},
  note = {Source identifier: 5721059}
}