@misc{indiciae30ef36e526e0,
  title = {Ages of globular clusters and helium diffusion},
  author = {Chaboyer, Brian and Sarajedini, Ata and Demarque, Pierre},
  year = {1992},
  url = {https://ntrs.nasa.gov/citations/19920066789},
  note = {Source identifier: 19920066789}
}