PT Journal AU Cuevas, JC Heurich, J Pauly, F Wenzel, W Schön, G TI Theoretical description of the electrical conduction in atomic and molecular junctions SO Nanotechnology PY 2003 BP 29 EP 38 VL 14 IS 8 DI 10.1088/0957-4484/14/8/201 LA english ER