Ivan Hal Sudborough Taoyu Zhang Circuit-Switched Routings for Automorphisms of a Hypercube. 28-35 1999 conf/ispan/1999 ISPAN http://csdl.computer.org/comp/proceedings/ispan/1999/0231/00/02310028abs.htm db/conf/ispan/ispan1999.html#SudboroughZ99