TY - JOUR T1 - Ballistic transport in semiconductor quantum wires in the presence of defects JO - Brazilian Journal of Physics A1 - Rocha, A. R. A1 - Brum, J. A. SN - 0103-9733 UL - 10.1590/S0103-97332002000200012 VL - 32 Y1 - 2002 PB - Brasil ER -