Three dimensional hopping conduction in electrochemically prepared polypyrrole (p-TS) - Rempillo, Ofelia T.; Quiroga, Reuben V.; Manzano, Maria Carla F.; Santos, Gil Nonato C.; Manzano, Enrique M. (Proceedings of the 23rd Samahang Pisika ng Pilipinas Physics Congress, 2005)