Books and Scientific Monographs Papadopoulos, E., "Introduction to Electrical Circuits and Systems," in Greek, 250 pages, NTUA Press 1998.Papadopoulos, E., "Electromechanical Systems for Power Conversion," in Greek, 380 pages, NTUA Press 1999. Papadopoulos, E., and Kyriakopoulos, K., "Introduction to Robotics," in Greek, 300 pages, NTUA Press 2004.