George Georgiev, Valentine Penev"Mathematical Model of Fuzzy Control System for Autonomous Guided Vehicle in 3D Space."Information & Security: An International Journal12,no. 2(2003):195-207.12.11_Georgiev_Penev.pdf
Plamena Andreeva, George Georgiev"Fuzzy Control Based on Cluster Analysis and Dynamic Programming."Information & Security: An International Journal 3(1999):91-107.03.06_Andreeva_Georgiev.pdf