Approximation, randomization and combinatorial optimization : algorithms and techniques: 8th international workshop on approximation algorithms for combinatorial optimization problems, APPROX 2005 and 9th international workshop on randomizationand computation, RANDOM 2005 Berkeley, Ca, USA, August 22-24, 2005: proceedings / SpringerLink (Online service), 2005 r=on-line. - Текст : электронный.