Daskalova, N.; Spetsov, P. (2020). "Taxonomic Relationships and Genetic Variability of Wild Secale L. Species as a Source for Valued Traits in Rye, Wheat and Triticale Breeding". Cytology and Genetics. 54: 71–81. doi:10.3103/S0095452720010041. S2CID211074467.
Daskalova, N.; Spetsov, P. (2020). "Taxonomic Relationships and Genetic Variability of Wild Secale L. Species as a Source for Valued Traits in Rye, Wheat and Triticale Breeding". Cytology and Genetics. 54: 71–81. doi:10.3103/S0095452720010041. S2CID211074467.