© 2015 Author(s). Licensee InTech. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Kromě případů, kde je uvedeno jinak, licence tohoto záznamu je © 2015 Author(s). Licensee InTech. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.