Fontes, A. M., C. W. Otoni, S. V. Maia, H. S. Brommonschenkel, and M. Fári. 1999. “Comparative Investigations on Protoplast Culture of Some Brazilian and Hungarian Sweet Pepper Cultivars and Hybrids”. International Journal of Horticultural Science 5 (3-4):39-45. https://doi.org/10.31421/IJHS/5/3-4/41.