@unpublished{eprints2516,
           month = {July},
          author = {Andrea Bacigalupo and Luigi Gambarotta},
           title = {Strain localization analysis of layered materials with soft interfaces based on a second-order homogenization approach},
       booktitle = {10th World Congress on Computational Mechanics},
            year = {2012},
             url = {http://eprints.imtlucca.it/2516/}
}