[1]
A. Georgieva and S. Kirkova, “Research on Burley group tobacco on the new important technology indicator gross β-activity”, BJCS, vol. 56, no. 4, pp. 42–47, Aug. 2019, Accessed: Oct. 12, 2026. [Online]. Available: https://agriacad.eu/ojs/index.php/bjcs/article/view/2841