Vassilevska-Ivanova, R. D., Stancheva, I., Geneva, M. and Tcekova, Z. (2018) “Evaluating an Interspecific Helianthus annuus × Helianthus nuttallii Line for Use in Sunflower Breeding Program”, Turkish Journal of Agriculture - Food Science and Technology, 6(12), pp. 1684–1689. doi: 10.24925/turjaf.v6i12.1684-1689.1361.