@misc{indiciaef0847573ab3c,
  title = {On the application of systems engineering methodology to emergency communication system program planning.},
  author = {G C Yorke and O A Gianniny and A P Sage},
  year = {1978},
  doi = {10.1016/0038-0121(78)90018-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/10307128/},
  note = {Source identifier: 10307128}
}