@article{AIHPC_2014__31_3_615_0,
     author = {Nesi, Vincenzo and Palombaro, Mariapia and Ponsiglione, Marcello},
     title = {Gradient integrability and rigidity results for two-phase conductivities in two dimensions},
     journal = {Annales de l'I.H.P. Analyse non lin\'eaire},
     pages = {615--638},
     publisher = {Elsevier},
     volume = {31},
     number = {3},
     year = {2014},
     doi = {10.1016/j.anihpc.2013.05.002},
     mrnumber = {3208457},
     zbl = {1298.30018},
     language = {en},
     url = {http://archive.numdam.org/articles/10.1016/j.anihpc.2013.05.002/}
}