@techreport{eprints2742,
            note = {submitted},
            type = {Working Paper},
           title = {Asymptotics for randomly reinforced urns with random barriers},
     institution = {IMT Institute for Advanced Studies Lucca},
          author = {Patrizia Berti and Irene Crimaldi and Luca Pratelli and Pietro Rigo},
            year = {2015},
        keywords = {Bayesian nonparametrics ? Central limit theorem ? Clinical
trial ? Random probability measure ? Stable convergence ? Urn model
.},
             url = {http://eprints.imtlucca.it/2742/}
}