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A. Kalnacs
LLC “Environment, Bioenergetics and Biotechnology Competence centre”, 21 Aizkraukles Str., LV-1006, Riga, LATVIA
J. Kalnacs
Institute of Physical Energetics, 21 Aizkraukles Str., LV-1006, Riga, LATVIA
A. Mutule
Institute of Physical Energetics, 21 Aizkraukles Str., LV-1006, Riga, LATVIA
U. Persis
LLC „BRZA Agro”, Research Institute of Agriculture, Skriveri District, LV-5125 LATVIA