Eckart Zitzler Joshua D. Knowles Lothar Thiele Quality Assessment of Pareto Set Approximations. 373-404 2008 Multiobjective Optimization http://dx.doi.org/10.1007/978-3-540-88908-3_14 conf/dagstuhl/2008moo db/conf/dagstuhl/moo2008.html#ZitzlerKT08