Cheng, Yunqing, Yixin Zhao, Jianfeng Liu, Wanting Gen, and Chunming Liu. 2015. “The Effects of Ethylene on the HCl-Extractability of Trace Elements During Soybean Seed Germination”. Electronic Journal of Biotechnology 18 (5). Valparaíso, Chile. https://preprints.pucv.cl/index.php/ejbiotechnology/article/view/2015.06.003.