Download the full article as a PDF file.
© 2018 Astrīda Krūmiņa, Liāna Pliss, Gunita Zariņa, Agrita Puzuka, Agnese Zariņa, Baiba Lāce, Didzis Elferts, Andrey Khrunin, Svetlana Limborska, Jānis Kloviņš, Linda Gailīte Piekuse, published by Latvian Academy of Sciences
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.