@inproceedings{eprints2082,
          author = {Marco Paggi and Giorgio Zavarise},
           title = {Contact of microscopically rough surfaces with graded elasticity},
       booktitle = {1st International Conference on Computational Contact Mechanics ICCCM09},
            year = {2009},
             url = {http://eprints.imtlucca.it/2082/}
}