@misc{indiciae33b16a152e7f,
  title = {A closed hole.},
  author = {G Barletta and A Toso and R Del Bene and R P Dabizzi},
  year = {1997},
  url = {https://pubmed.ncbi.nlm.nih.gov/9282288/},
  note = {Source identifier: 9282288}
}