Hoenemann, Claudia, and Annette Hohe. 2011. “Selection of Reference Genes for Normalization of Quantitative Real-Time PCR in Cell Cultures of Cyclamen Persicum”. Electronic Journal of Biotechnology 14 (1). Valparaíso, Chile. https://www.ejbiotechnology.info/index.php/ejbiotechnology/article/view/v14n1-8.