Published Online: Dec 31, 2018
Page range: 54 - 59a
DOI: https://doi.org/10.2478/disp-2000-0005
© 2019 José Alberto Silva, Fernando Serôdio, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.
José Alberto Silva
E. S. Marquês de Pombal, R. Alexandre Sá Pinto,Lisboa, Portugal
Fernando Serôdio
E. S. Marquês de Pombal, R. Alexandre Sá Pinto,Lisboa, Portugal