Samir Roy Biplab K. Sikdar Monalisa Mukherjee Debesh K. Das Degree-of-Freedom Analysis for Sequential Machines Targeting BIST Quality and Gate Area. 671-676 2002 conf/vlsid/2002 VLSI Design http://csdl.computer.org/comp/proceedings/vlsid/2002/1441/00/14410671abs.htm db/conf/vlsid/vlsid2002.html#RoySMD02