Haensch, K.-T. “Influence of 2,4-D and BAP on Callus Growth and the Subsequent Regeneration of Somatic Embryos in Long-Term Cultures of Pelargonium X Domesticum Cv. Madame Layal”. Electronic Journal of Biotechnology, vol. 10, no. 1, Jan. 2007, pp. 0-0, https://preprints.pucv.cl/index.php/ejbiotechnology/article/view/v10n1-9.