you can find additional references and analysis of the Kauffman networks in:
Amartya Bhattacharjya and Shoudan Liang, "Power-Law Distributions in Some Random Boolean Networks", Physical Review Letters, 19 August 1996 Vol 77/No 8 1664
Amartya Bhattacharjya and Shoudan Liang, "Median Attractor and Transients in Random Boolean Nets", Physica D, Elsevier Science B.V., 95 (1996) 29-34
