@Article{ Sierra_VASSALLO_BAEZA:447-451,

author = { Julián Sierra and JOSÉ MANUEL VASSALLO and MARÍA DE LOS ÁNGELES BAEZA MUÑOZ } ,

title = { Unbundling tolls from contracts: a new road PPP model },

journal = { Public Money & Management },

year = { 2014 },

volume = { 34 },

pages = { 447-451 },

}