Nombela, Gustavo and de Rus, Gines (2001): Auctions for Infrastructure Concessions with Demand Uncertainty and Unknown Costs. Unpublished.
de Rus, Gines and Nombela, Gustavo (2003): Concesiones de plazo variable para la construcción y explotación de autopistas. Unpublished.
de Rus, Gines and Nombela, Gustavo (2000): Least Present Value of Net Revenue: a new auction-mechanism for highway concessions. Unpublished.
