@misc{compref622,
   author = {Lyon,ML},
   year = {1992},
   title = {Complexity and Emergence:  The seduction and reduction of non-linear models in the social sciences},
   howpublished = {Complex Systems 92, Australia National University, available by <a href="ftp://life.anu.edu.au/Pub/complex{Isystems/anu92/papers/l">ftp</a>}
}