Hajjar R, Hodgkin T (2007). "The use of wild relatives in crop improvement: a survey of developments over the last 20 years". Euphytica. 156 (1–2): 1–13. doi:10.1007/s10681-007-9363-0. S2CID36269581.
Hajjar R, Hodgkin T (2007). "The use of wild relatives in crop improvement: a survey of developments over the last 20 years". Euphytica. 156 (1–2): 1–13. doi:10.1007/s10681-007-9363-0. S2CID36269581.