@article{eprints1540,
         journal = {Physics Today},
       publisher = { 	American Institute of Physics},
          author = {Orion Penner and Alexander M. Petersen and Raj K. Pan and Santo Fortunato},
          volume = {66},
           month = {April},
           pages = {8--9},
          number = {4},
           title = {Commentary: The case for caution in predicting scientists? future impact},
            year = {2013},
             url = {http://eprints.imtlucca.it/1540/}
}