Pereira, L. K., C. A. Scapim, C. A. Mangolin, M. de F. Pires da Silva Machado, C. A. Patto Pacheco, and F. Mora. “Heterozygosity Following Half-Sib Recurrent Selection in Popcorn Using Isoenzyme Markers”. Electronic Journal of Biotechnology, vol. 11, no. 1, Jan. 2008, pp. 0-0, https://preprints.pucv.cl/index.php/ejbiotechnology/article/view/v11n1-2.