1. An application of swarm optimization to nonlinear programming;Dong;An International journal in Computers and mathematics with applications,2005
2. Particle swarm optimization approach for multi-bjective composite box-beam design;Suresh;A journal in Composite structures,2007
3. A study of particle swarm optimization particle trajectories;Bergh;An International journal in Information sciences,2006
4. GUO Chuang-xin, HU Jia-sheng, YE Bin, CAO YI-jia, “Swarm intelligence for mixed-variable design optimization”, A journal of Zhejiang University SCIENCE ISSN 1009–3095 accessed in November 2003.
5. Kaisedlaczek and peter Eberhard, “ Constrained particle swarm optimization of mechanical systems”, 6th World congresses of structural and multidisciplinary optimization Rio de Janeiro, 30 may-03 June 2005.