E.  Small, Alfalfa and relatives: evolution and classification of Medicago. NRC Research Press, Ottawa: XXXIV, 2011.

E.  Small, Jomphe, M., and Brookes, B., ?Medicago truncatula f. laxicycla (Leguminosae), a new taxon with loose fruit coiling promoting rapid germination of the fruit-retained seeds?, Pl. Syst. Evol, vol. 174, pp. 37 - 46, 1991.

E.  Small, Lassen, P., and Brookes, B. S., ?An expanded circumscription of Medicago (Leguminosae, Trifolieae) based on explosive flower tripping?, Willdenowia, vol. 16, pp. 415 - 437, 1987.

E.  Small, ?Taxonomy of glandular wild alfalfa (Medicago sativa)?, Canad. J. Bot, vol. 64, no. 9, pp. 2125 - 2129, 1986.

E.  Small and Brookes, B., ?A numerical taxonomic analysis of the Medicago littoralis - M. truncatula complex?, Canad. J. Bot, vol. 68, no. 8, pp. 1667 - 1674, 1990.

E.  Small and Fawzy, M., ?Morphogeographic variation in the Medicago monantha complex?, Canad. J. Bot, vol. 70, no. 6, pp. 1292 - 1301, 1992.

E.  Small, Bauchan, G. R., Salter, R., Brookes, B., and Auricht, G. C., ?A systematic comparison of morphology and seed proteins of early- and late-flowering forms of Medicago scutellata?, Canad. J. Bot. 71, no. 1, pp. 183 - 192, 1993.

E.  Small, ?A taxonomic study of the _medicagoid_ Trigonella (Leguminosae)?, Can. J. Bot, vol. 65, pp. 1199 - 1211, 1987.

E.  Small and Jomphe, M., ?A synopsis of the genus Medicago (Leguminosae)?, Can. J. Bot, vol. 67, pp. 3260 - 3294, 1989.

E.  Small, ?Morphological differentiation in Medicago sativa s.l. in relation to ploidy?, Canad. J. Bot, vol. 63, no. 10, pp. 1747 - 1752, 1985.