Armstead, I., Turner, L., Farrell, M., Skøt, L., Gomez, P., Montoya, T., …Humphreys, M. (2004). Synteny between a major heading-date QTL in perennial ryegrass (Lolium perenne L.) and the Hd3 heading-date locus in rice. TAG Theoretical and Applied Genetics, 108(5), 822-828. doi:10.1007/s00122-003-1495-6