Cecchi, L., and F.  Selvi. 2009. ?Phylogenetic relationships of the monotypic genera Halacsya and Paramoltkia and the origins of serpentine adaptation in circum- mediterranean Lithospermeae (Boraginaceae): insights from ITS and matK DNA sequences?. Taxon 58 (3). Retrieved  ( http://www.jstor.org/stable/27756939).

Selvi, F., and K.  Sutorý. 2012. ?A synopsis of the genus Cynoglossum (Boraginaceae-Cynoglosseae) in Italy?. Plant Biosystems 146(2).

Selvi, F., L.  Cecchi, and A.  Coppi. 2009. ?Phylogeny, karyotype evolution and taxonomy of Cerinthe L. (Boraginaceae)?. Taxon 58(4). Retrieved  (http://www.jstor.org/stable/27757019).

Weigend, M., F.  Luebert, F.  Selvi, G.  Brokamp, and H. H.  Hilger. 2013. ?Multiple origins for Hound?s tongues (Cynoglossum L.) and Navel seeds (Omphalodes Mill.) ? The phylogeny of the borage family (Boraginaceae s.str.)?. Molecular Phylogenetics and Evolution 68(3):604 - 618. Retrieved  (http://www.sciencedirect.com/science/article/pii/S1055790313001590).