Risto Honkanen Martti Penttonen Ville Leppänen Hot-Potato Routing Algorithms for Sparse Optical Torus. 302-310 2001 conf/icppw/2001 ICPP Workshops http://csdl.computer.org/comp/proceedings/icppw/2001/1260/00/12600302abs.htm db/conf/icppw/icppw2001.html#HonkanenPL01