Köhler, C; Mittelsten Scheid, O; Erilova, A (Mar 2010). "The impact of the triploid block on the origin and evolution of polyploid plants". Trends in Genetics. 26 (3): 142–8. doi:10.1016/j.tig.2009.12.006. PMID20089326.
Marks, G. E. (1966). "The Origin and Significance of Intraspecific Polyploidy: Experimental Evidence from Solanum chacoense". Evolution. 20 (4): 552. doi:10.2307/2406589. PMID28562905.
Köhler, C; Mittelsten Scheid, O; Erilova, A (Mar 2010). "The impact of the triploid block on the origin and evolution of polyploid plants". Trends in Genetics. 26 (3): 142–8. doi:10.1016/j.tig.2009.12.006. PMID20089326.
Marks, G. E. (1966). "The Origin and Significance of Intraspecific Polyploidy: Experimental Evidence from Solanum chacoense". Evolution. 20 (4): 552. doi:10.2307/2406589. PMID28562905.