?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aulast=Di+Ciommo&rft.aufirst=Floridea&rft.au=Di+Ciommo%2C+Floridea&rft.isbn=978-989-96986-2-8&rft.date=2010&rft.title=The+simulation+of+a+toll-ring+scheme+for+Madrid%3A+an+efficiency+and+equity+analysis.&rft.btitle=Actas+del+XVI+Congreso+Panamericano+de+Ingenier%C3%ADa+de+Tr%C3%A1nsito+y+Transporte+y+Log%C3%ADstica&rft.genre=proceeding