Karpechenko, G. D. (December 1928). "Polyploid hybrids of Raphanus sativus X Brassica oleracea L.". Bulletin of Applied Botany. 17: 305–408. /wiki/Georgii_Karpechenko
Karpechenko, G. D. (1989) [1928]. "Polyploid hybrids of Raphanus sativus L. X Brassica oleracea L.". In Janick, J. (ed.). Classic papers in horticultural science. The Blackburn Press. pp. 442–525. ISBN 9781930665064. 9781930665064
Karpechenko, G. D. (December 1928). "Polyploid hybrids of Raphanus sativus X Brassica oleracea L.". Zeitschrift für Induktive Abstammungs- und Vererbungslehre. 48 (1): 1–85. doi:10.1007/bf01740955. ISSN 1617-4615. S2CID 116381242. /wiki/Georgii_Karpechenko
Shemilt, L. W., ed. (1983). Chemistry and world food supplies : the new frontiers, Chemrawn II : invited papers presented at the International Conference on Chemistry and World Food Supplies, Manila, Philippines, 6-10 December 1982 (1st ed.). Oxford: Pergamon Press. p. 573. ISBN 0080292437. OCLC 9557528. 0080292437
Meneely, Philip Mark; Dawes Hoang, Rachel; Okeke, Iruka N.; Heston, Katherine (2017). Genetics: genes, genomes, and evolution. Oxford: Oxford University Press. p. 249. ISBN 978-0-19-879536-0. OCLC 951645141. 978-0-19-879536-0
Choudhary, B. R.; Joshi, P.; Singh, K. (2000-10-10). "Synthesis, morphology and cytogenetics of Raphanofortii (TTRR, 2n = 38): a new amphidiploid of hybrid Brassica tournefortii (TT, 2n = 20) × Raphanus caudatus (RR, 2n=18)". Theoretical and Applied Genetics. 101 (5–6): 990–999. doi:10.1007/s001220051572. ISSN 0040-5752. S2CID 22139768. /wiki/Doi_(identifier)
Otto, Sarah P.; Whitton, Jeannette (2000). "Polyploidy: incidence and evolution". Annual Review of Genetics. 34: 401–437. doi:10.1146/annurev.genet.34.1.401. PMID 11092833. /wiki/Annual_Review_of_Genetics