M. Keijzer, V. Babovic, C. Ryan, M. O'Neill, и M. Cattolico. Proceedings of the Genetic and Evolutionary
Computation Conference (GECCO-2001), стр. 42--49. San Francisco, California, USA, Morgan Kaufmann, (7-11 July 2001)
K. Dill, J. Herzog, и M. Perkowski. Communications, Computers and Signal Processing,
PACRIM 1997, 2, стр. 823--826. Victoria, BC, Canada, (20-22 August 1997)