@article{eprints1178,
          number = {5},
       publisher = {American Physical Society},
         journal = {Physical Review E},
          author = {Guido Caldarelli and Achille Giacometti and Amos Maritan and Ignacio Rodriguez-Iturbe and Andrea Rinaldo},
           title = {Randomly pinned landscape evolution},
          volume = {55},
            year = {1997},
           pages = {R4865--R4868},
        keywords = {PACS: 05.40.+j, 68.70.+w
},
        abstract = {A simple scheme for the evolution of a fluvial landscape in heterogeneous environments is critically examined to capture the essential mechanism responsible for the recurrent scale-free landforms in the river basin. It is shown that, regardless of boundary and initial conditions, geomorphological constraints in the form of quenched randomly pinned regions play a key role in the robust emergence of aggregation patterns with a scaling behavior in agreement with that of real river basins. },
             url = {http://eprints.imtlucca.it/1178/}
}