Ziffer-Berger, J., N. Hanin, T. Fogel, K. Mummenhoff, and O. Barazani. 2014. “Molecular Phylogeny Indicates Polyphyly in Raphanus L. (Brassicaceae)”. Edinburgh Journal of Botany 72 (1): 1-11. https://doi.org/10.1017/S0960428614000286.