S. Saha, S. Yangchen, D. Mandal, R. Kar, and S.P. Ghoshal, “Digital Stable IIR High Pass Filter Optimization using PSO-CFIWA,” IEEE Symposium on Humanities, Science and Engineering Research, pp. 389-394, 2012.
J.J. Liang and P.N. Suganthan, “Dynamic Multi-Swarm Particle Swarm Optimizer,” Proceeding 2005 IEEE Swarm Intelligence Symposium, pp. 124-129, 2005.