About this article
Published Online: Jun 16, 2015
Page range: 4 - 6
Received: Dec 25, 2014
Accepted: Jan 15, 2015
DOI: https://doi.org/10.1515/amma-2015-0023
Keywords
© by P. Zilberman
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Zilberman, P.