@article{Blackwell03,
  title = {Thinking with Diagrams},
  author = {Alan F. Blackwell},
  year = {2003},
  url = {http://jasss.soc.surrey.ac.uk/6/4/reviews/patel.html},
  researchr = {https://researchr.org/publication/Blackwell03},
  cites = {0},
  citedby = {0},
  journal = {J. Artificial Societies and Social Simulation},
  volume = {6},
  number = {4},
}