About this article
Published Online: Dec 31, 2018
Page range: 317 - 322
DOI: https://doi.org/10.2478/disp-2012-0001
© 2012 Francesca Ervas et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Francesca Ervas
University of Cagliari,
Vera Tripodi
University of Barcelona,