@misc{indiciaebcf04029d198,
  title = {[Planned and active parenthood--exercises and relaxation technics].},
  author = {W Fijałkowski and B Karpiński},
  year = {1979},
  url = {https://pubmed.ncbi.nlm.nih.gov/390569/},
  note = {Source identifier: 390569}
}