Qing Zhang Changhe Li Yong Liu Lishan Kang Fast Multi-swarm Optimization with Cauchy Mutation and Crossover Operation. 344-352 2007 conf/isica/2007 ISICA http://dx.doi.org/10.1007/978-3-540-74581-5_38 db/conf/isica/isica2007.html#ZhangLLK07