@misc{indiciae250e84278caf,
  title = {The systems approach.},
  author = {A J Wildman},
  year = {1973},
  doi = {10.1043/0003-3219(1973)043<0088:tsa>2.0.co;2},
  url = {https://pubmed.ncbi.nlm.nih.gov/4509529/},
  note = {Source identifier: 4509529}
}