Rolf Wanka Any Load-Balancing Regimen for Evolving Tree Computations on Circulant Graphs Is Asymptotically Optimal. 413-420 2002 conf/wg/2002 WG http://link.springer.de/link/service/series/0558/bibs/2573/25730413.htm db/conf/wg/wg2002.html#Wanka02