Antonio F. Gómez-Skarmeta Fernando Jiménez Jesús Ibáñez Pareto-optimality in Scheduling Problems. 177-185 1999 conf/fuzzy/1999 Fuzzy Days db/conf/fuzzy/fuzzy1999.html#Gomez-SkarmetaJI99 http://dx.doi.org/10.1007/3-540-48774-3_21