Perturbations on the superconducting state of metallic nanoparticles: influence of geometry and impuritiesMario Van Raemdonck, Stijn De Baerdemacker and Dimitri Van NeckEur. Phys. J. D, 67 1 (2013) 14DOI: https://doi.org/10.1140/epjd/e2012-30543-0