@article{18828, 
year={2001},
issn={},
journal={RICERCA OPERATIVA},
number={98-99-100},
volume={},
doi={},
title={Foreword},
abstract={}
url={http://www.francoangeli.it/Riviste/Scheda_rivista.aspx?idArticolo=18828},
author={Emilio Spedicato}
pages={},
language={IT}}