@misc{indiciae86c975636f47,
  title = {[Preparing for old age, necessity, ways, content, limits (author's transl)].},
  author = {S Eitner and A Eitner and U J Schmidt and F H Schulz},
  year = {1976},
  url = {https://pubmed.ncbi.nlm.nih.gov/983146/},
  note = {Source identifier: 983146}
}