@misc{indiciae0d1c73b20e2c,
  title = {[Scanning electron microscopy].},
  author = {I Virtanen and R Grönberg and J Wartiovaara},
  year = {1972},
  url = {https://pubmed.ncbi.nlm.nih.gov/4553616/},
  note = {Source identifier: 4553616}
}