@misc{indiciae02459babd757,
  title = {Are demographic developments influenced by social security?},
  author = {J H Nelissen and P A Van Den Akker},
  year = {1988},
  doi = {10.1016/0167-4870(88)90033-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/12283106/},
  note = {Source identifier: 12283106}
}