Institution: | (1) Faculty of Computer Science, “Al. I. Cuza” University, 11, Carol I Bd., 6600 Iaşi, Romania (e-mail: branzeir@infoiasi.ro), RO;(2) Dipartimento di Matematica, Università di Pavia, via Ferrata 1, 27100 Pavia, Italy (e-mail: scotti@dimat.unipv.it), IT;(3) CentER and Department of Econometrics and Operations Research, Tilburg University, P.O. Box 90153, 5000 LE Tilburg, The Netherlands (e-mail: S.H.Tijs@uvt.nl), NL;(4) Dipartimento di Matematica, Università di Pavia, via Ferrata 1, 27100 Pavia, Italy (e-mail: atorre@dimat.unipv.it), IT |