Popova, T. and Valcheva, D. (2016) “Productivity of barley accessions resistant to brown loose smut (Ustilago nuda (Jens) Rostrup) in terms of Southeast Bulgaria”, Bulgarian Journal of Crop Science, 53(5-6), pp. 26–35. Available at: https://agriacad.eu/ojs/index.php/bjcs/article/view/3236 (Accessed: 11 October 2026).