@misc{indiciae6925ddc9802c,
  title = {The "EM" program system.},
  author = {R Hegerl and A Altbauer},
  year = {1982},
  doi = {10.1016/0304-3991(82)90233-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/7135626/},
  note = {Source identifier: 7135626}
}