Michael T. Niemier Michael Crocker Xiaobo Sharon Hu Fabrication Variations and Defect Tolerance for Nanomagnet-Based QCA. 534-542 2008 DFT http://dx.doi.org/10.1109/DFT.2008.54 conf/dft/2008 db/conf/dft/dft2008.html#NemierCH08