1. Ackley, D.H.: A Connectionist Machine for Genetic Hillclimbing. Kluwer Academic Publishers (1987)
2. Cagnina, L.C., Esquivel, S.C., Coello, C.A.: Solving engineering optimization problems with the simple constrained particle swarm optimizer. Informatica 32, 319–326 (2008)
3. Chittka, L., Thomson, J.D., Waser, N.M.: Flower constancy, insect psychology, and plant evolution. Naturwissenschaften 86, 361–377 (1999)
4. Floudas, C.A., Pardalos, P.M., Adjiman, C.S., Esposito, W.R., Gumus, Z.H., Harding, S.T., Klepeis, J.L., Meyer, C.A., Scheiger, C.A.: Handbook of Test Problems in Local and Global Optimization. Springer (1999)
5. Hedar, A.: Test function web pages,
http://www-optima.amp.i.kyoto-u.ac.jp/member/student/hedar/Hedar_files/TestGO_files/Page364.htm