“Evaluation of Hybrids Developed from Diversified CMS Lines for Resistance to Powdery Mildew in Sunflower Helianthus Annuus L.”. Electronic Journal of Plant Breeding 7, no. 4 January 24, 2017: 947-952. Accessed April 20, 2024. https://ejplantbreeding.org/index.php/EJPB/article/view/1372.