Baruch Awerbuch Mohammad Taghi Hajiaghayi Robert Kleinberg Tom Leighton Localized Client-Server Load Balancing without Global Information. 1259-1279 2007 37 SIAM J. Comput. 4 http://dx.doi.org/10.1137/S009753970444661X db/journals/siamcomp/siamcomp37.html#AwerbuchHKL07