.Boissier P. E. 1879: Flora Orientalis 5: 670-671. Basileae, Georg Geneva, Switzerland
Bor N. L. 1968: Secale L. In: Townsend C. C., Guest E. and Al-Rawi A. (eds.), Flora of Iraq 9: 258-262. Ministry of Agriculture of the Republic of Iraq
Bor N. L. 1970: Secale L. In: Rechinger K. H. (ed.) Flora Iranica 70: 213-217. Akademische Druk-u. verlagsanstalt Graz, Austria.
Fredriksen S. & Petersen G. 1997: Morphometrical analyses of Secale (Triticeae, Poaceae). Nord. J. Bot. 17(2): 185-198.
Fredriksen S. & Petersen G. 1998: A taxonomic revision of Secale (Triticeae, Poaceae). Nord. J. Bot. 18(4): 399-420.
Heathcote S. A. 1980: Secale L. In: Tutin T. G., Heywood V. H., Burges N. A., Moore D. M., Valentine D. H., Walters S. M. & Webb D. A. (eds.) Flora Europaea 5: 203-204. Cambridge University Press, Cambridge.
Khush G. S. & Stebbins G. L. 1961: Cytogenetics and evolutionary studies in Secale. I some new data on the ancestry of Secale cereale. Am. J. Bot. 48: 723-730.
Maire R. 1955: Flore de l’ Afrique du Nord 3: 337-340. Paul Le Chevalier, Paris.
Nasir E. & Ali S. I. 1982: Flora of Pakistan (Poaceae) 143: 600-603. Herbarium of Royal Botanic Garden, Kew, England.
Parsa A. 1950: Flore de l’ Iran 5: 805-807. Ministere de l’ Education, Tehran.
Petersen G. 1991a: Intergeneric hybridisation between Hordeum and Secale (Poaceae) I. Crosses and development of hybrids. Nord. J. Bot. 11(3): 253-270.
Petersen G. 1991b: Intergeneric hybridisation between Hordeum and Secale (Poaceae) II. Crosses and development of hybrids. Nord. J. Bot. 11(4): 141-159.
Rozhevits R. Y. & Shishkin B. K. 1985: Secale L. In: Komarov V. L. (ed.) Flora of U.S.S.R. 2: 530-533. Koeltz scientific books, Koenight (English translation).
Stutz H. C. 1972: On the origin of cultivated rye. Am. J. Bot. 59: 59-70.
Tan K. 1985: Secale L. In: Davis P. H. (ed.) Flora of Turkey and the East Aegean Islands 9: 255-260. Edinburgh at the University Press.
Wang R. R.-C. 1988: Diploid perennial intergeneric hybrids in the tribe Triticeae IV. Hybrids among Thinopyrum bessarabicum, Pseudoroegneria spicata and Secale montanum. Genome 29: 80-84.
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