@ARTICLE {4491,
author={E. S. Pires Pires and J. A. Machado and P. B. Oliveira and J. Boaventura Cunha  Boaventura Cunha and L.  Mendes},
doi={10.1007/s11071-009-9649-y},
journal={Nonlinear Dynamics},
title={Particle Swarm Optimization with Fractional-Order Velocity},
year={2010},
month={January},
volume={--},
number={--},
pages={-----},
ISSN={0924-090X}
}