J. Ziffer-Berger, N. Hanin, T. Fogel, K. Mummenhoff, and O. Barazani, “Molecular phylogeny indicates polyphyly in Raphanus L. (Brassicaceae)”, Edinburgh J. Bot., vol. 72, no. 1, pp. 1–11, Dec. 2014, doi: 10.1017/S0960428614000286.