Download Article
Download the full article as a PDF file.
Download the full article as a PDF file.
© 2015 Dace Grauda, Anton Kolodynski, Inta Belogrudova, Lada Bumbure, Isaak Rashal, published by Latvian Academy of Sciences
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.