Soulier, E. , Calvez, P. , Bugeaud, F. , Rousseaux, F. , Legrand, J.. "Simulation of Activity Stream inside Energy Social Business Environment using Assemblage Theory and Simplicial Complex Tool". World Academy of Science, Engineering and Technology, Open Science Index 65, International Journal of Computer and Information Engineering, (2012), 6(5), 594 - 599.