Short Communications

Data publikacji: 02 maj 2014

Zakres stron: 75 - 78

DOI: https://doi.org/10.2478/plc-2014-0006

© by Jan E. Okuniewski

This article is distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.