@misc{indiciaea6afc2d97903,
  title = {A modified probability distribution for first birth interval.},
  author = {R N Mishra and K K Singh and S N Dwivedi},
  year = {1984},
  url = {https://pubmed.ncbi.nlm.nih.gov/12233468/},
  note = {Source identifier: 12233468}
}