@unpublished{eprints2502,
           title = {Second-order-enhanced computational homogenization for heterogeneous materials with periodic-microstructures},
       booktitle = {XVIII Convegno Italiano di Meccanica Computazionale},
            year = {2010},
          author = {Andrea Bacigalupo and Luigi Gambarotta},
           month = {September},
             url = {http://eprints.imtlucca.it/2502/}
}