Juan Antonio Álvarez Alejandro Fernández-Montes J. Moreno Juan Antonio Ortega Luis González Francisco Velasco Delivery Improvement for Transport Companies. 217-219 2008 ICCBSS http://doi.ieeecomputersociety.org/10.1109/ICCBSS.2008.23 conf/iccbss/2008 db/conf/iccbss/iccbss2008.html#AlvarezFMOGV08