KHAJEHZADEH, M.; TAHA, M.R.; EL-SHAFIE, A.; ESLAMI, M. (2011). Modified particle swarm optimization for optimum design of spread footing and retaining wall. Journal of Zheijiang University-SCIENCE A (Applied Physics & Engineering), 12(6):415-427.
KHAJEHZADEH, M.; TAHA, M.R.; EL-SHAFIE, A.; ESLAMI, M. (2011). Modified particle swarm optimization for optimum design of spread footing and retaining wall. Journal of Zheijiang University-SCIENCE A (Applied Physics & Engineering), 12(6):415-427.