Klimek-Chodacka, M., and R. Baranski. “Comparison of Haploid and Doubled Haploid Sugar Beet Clones in Their Ability to Micropropagate and Regenerate”. Electronic Journal of Biotechnology, vol. 16, no. 2, Mar. 2013, https://www.ejbiotechnology.info/index.php/ejbiotechnology/article/view/v16n2-3.