Stafecka, Inga, et al. “THE EVALUATION OF YIELD AND AGRONOMIC TRAITS OF FLAX GENOTYPES UNDER LATVIAN CONDITIONS”. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference, vol. 1, June 2019, pp. 277-82, https://doi.org/10.17770/etr2019vol1.4161.