Tillie, Nico; Chase, M.; Hall, T. (January 2000). "Molecular studies in the genus Iris L.: A preliminary study". Annali di Botanica. 58: 105–112. doi:10.4462/annbotrm-9068 (inactive 1 November 2024).{{cite journal}}: CS1 maint: DOI inactive as of November 2024 (link)