Andrei Petrovski Bhavani Sudha John A. W. McCall Optimising Cancer Chemotherapy Using Particle Swarm Optimisation and Genetic Algorithms. 633-641 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3242&spage=633 2004 conf/ppsn/2004 PPSN db/conf/ppsn/ppsn2004.html#PetrovskiSM04