À propos de cet article
Publié en ligne: 31 déc. 2018
Pages: 315 - 321
Reçu: 03 oct. 2013
Accepté: 09 nov. 2013
DOI: https://doi.org/10.2478/disp-2013-0024
© 2013 Giuliano Torrengo, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Giuliano Torrengo
University of Milan,