@misc{indiciaebcd1feab1430,
  title = {Training in old age.},
  author = {C C Sieber and T Nikolaus},
  year = {2004},
  doi = {10.1007/s00391-004-0207-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/14991288/},
  note = {Source identifier: 14991288}
}