@article{TAM_2002_28-29_1_a13,
     author = {P. Podio-Guidugli},
     title = {Contact interactions, stress and material symmetry},
     journal = {Theoretical and applied mechanics},
     pages = {261 - 276},
     publisher = {mathdoc},
     volume = {28-29},
     number = {1},
     year = {2002},
     url = {http://geodesic.mathdoc.fr/item/TAM_2002_28-29_1_a13/}
}