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Publicado en línea: 17 may 2014
Páginas: 27 - 33
DOI: https://doi.org/10.2478/ecce-2014-0004
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© Riga Technical University
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.
Rassõlkin, Anton
Liivik, Liisa
Vodovozov, Valery
Raud, Zoja