K. Kaier, C. Hagist, U. Frank, A. Conrad, and E. Meyer. Infection Control and Hospital Epidemiology: The Official Journal of the Society of Hospital Epidemiologists of America, 30 (4):
346--353(April 2009)PMID: 19236282.
S. Kopp, H. Mortveit, and C. Reidys. Proceedings of the Genetic and Evolutionary
Computation Conference, 2, page 1445. Orlando, Florida, USA, Morgan Kaufmann, (13-17 July 1999)
C. Keber, and M. Schuster. GECCO 2002: Proceedings of the Genetic and
Evolutionary Computation Conference, page 74--81. New York, Morgan Kaufmann Publishers, (9-13 July 2002)