@unpublished{eprints206,
           title = {Between Natural Law and Evolutionism.
Political Philosophy and Classical Liberal Theory after WWII
},
            type = {Working Paper},
          author = {Antonio Masala},
     institution = {IMT Institute for Advanced Studies Lucca},
            year = {2007},
             url = {http://eprints.imtlucca.it/206/}
}