I. A.  Al-Shehbaz, ?Nomenclatural notes on Eurasian Arabis (Brassicaceae)?, Novon, vol. 15, pp. 519 - 524, 2005.

I. A.  Al-Shehbaz, Mummenhoff, K., and Appel, O., ?Cardaria, Coronopus, and Stroganowia are united with Lepidium (Brassicaceae)?, Novon, vol. 12, pp. 5 - 11, 2002.

I. A.  Al-Shehbaz and Price, R. A., ?Delimitation of the genus Nasturtium (Brassicaceae)?, Novon, vol. 8, no. 2, pp. 124 - 126, 1998.

S. I.  Warwick and Al-Shehbaz, I. A., ?Nomenclatural notes on Sisymbrium (Brassicaceae)?, Novon, vol. 13, pp. 265 - 267, 2003.