“Identification of Fertility Restorers and Maintainers in Sunflower Helianthus Annuus L. from Gene Pools and Exotic Material”. Electronic Journal of Plant Breeding 7, no. 3 November 10, 2016: 778-783. Accessed November 21, 2024. https://ejplantbreeding.org/index.php/EJPB/article/view/1099.