https://books.google.ch/books?id=iVMyAQAAQBAJ&pg=PA41&lpg=PA41&dq=impregilo+argentina+icsid+cordoba&source=bl&ots=7bicHAbwCh&sig=xH-I-95CjiaYQ4CQXcpysVI5d5w&hl=en&sa=X&ei=1bzIVLvFDoT2UqnwgZgM&ved=0CCwQ6AEwAg#v=onepage&q=impregilo%20argentina%20icsid%20cordoba&f=falsewww.iareporter.com/downloads/20100107_14/download (requires subscription)
http://globalarbitrationreview.com/news/article/28707/another-one-off-argentinas-list/ (requires subscription)
http://globalarbitrationreview.com/news/article/14880/argentina-faces-fresh-investment-dispute-impregilo/ (requires subscription)