Randolph, Lowell Fritz; Mitra, Jyotirmay (November 1961). "Karyotypes of Iris Species Indigenous to the USSR". American Journal of Botany. 48 (10). Botanical Society of America: 862–870. doi:10.2307/2439526. JSTOR2439526.
Higgins, Betsy (7 May 2015). "(SPEC) Iris furcata Bieb". wiki.irises.org (American Iris Society). Retrieved 26 September 2015.
jstor.org
Randolph, Lowell Fritz; Mitra, Jyotirmay (November 1961). "Karyotypes of Iris Species Indigenous to the USSR". American Journal of Botany. 48 (10). Botanical Society of America: 862–870. doi:10.2307/2439526. JSTOR2439526.