Haridimos T. Vergos Dimitris Nikolos Y. Tsiatouhas Th. Haniotakis Michael Nicolaidis On Path Delay Fault Testing of Multiplexer - Based Shifters. 20-23 1999 conf/glvlsi/1999 Great Lakes Symposium on VLSI http://csdl.computer.org/comp/proceedings/glsvlsi/1999/0104/00/01040020abs.htm db/conf/glvlsi/glvlsi1999.html#VergosNTHN99