Daniel Marienfeld Vitalij Ocheretnij Michael Gössel Egor S. Sogomonyan Partially Duplicated Code-Disjoint Carry-Skip Adder. 78-86 2002 conf/dft/2002 DFT http://www.computer.org/proceedings/dft/1831/18310078abs.htm db/conf/dft/dft2002.html#MarienfeldOGS02