@unpublished{eprints2090,
           title = {Minimum weight multicolor dynamos},
          author = {Sara Brunetti and Gennaro Cordasco and Luisa Gargano and Elena Lodi and Walter Quattrociocchi},
       booktitle = {ICTCS 2013 - 14th Italian Conference on Theoretical Computer Scienc},
            year = {2013},
             url = {http://eprints.imtlucca.it/2090/}
}