Classification of Ulmus is based primarily on Whittemore et al 2021.[1] Previous Ulmus classifications include Wiegrefe et al 1994,[2] and Melville & Heybroek 1971.[3]
Bean, W. J. (1981). Trees and shrubs hardy in Great Britain, 7th edition. Murray, London.
Brasier, C. M. (1996). New horizons in Dutch elm disease control. Pages 20–28 in: Report on Forest Research, 1996. Forestry Commission. HMSO, London, UK.[1]Archived 2007-06-28 at the Wayback Machine
Burdekin, D.A.; Rushforth, K.D. (November 1996). "Elms resistant to Dutch elm disease"(PDF). Arboriculture Research Note. 2/96. Revised by J.F. Webber. Alice Holt Lodge, Farnham: Arboricultural Advisory & Information Service: 1–9. ISSN1362-5128. Retrieved 26 October 2017.
Collin, E. (2001). Elm. In Teissier du Cros (Ed.) (2001) Forest Genetic Resources Management and Conservation. France as a case study. Ministry of Agriculture and Fisheries, Bureau of Genetic Resources. INRA DIC. France.
Elwes, H. J. & Henry, A. (1913). The Trees of Great Britain & Ireland. Vol. VII. pp 1848–1929. Private publication [2]
Fu, L., Xin, Y. & Whittemore, A. (2002). Ulmaceae, in Wu, Z. & Raven, P. (eds), (2003). Flora of China, Vol. 5 (Ulmaceae through Basellaceae). Science Press, Beijing, and Missouri Botanical Garden Press, St. Louis, USA. [3]
Melville, R. & Heybroek, H. (1971). Elms of the Himalaya. Kew Bulletin, Vol. 26 (1). Kew, London.
Richens, R. H. (1983). Elm. Cambridge University Press.
Ware, G. (1995). Little-known elms from China: landscape tree possibilities. Journal of Arboriculture, (Nov. 1995). International Society of Arboriculture, Champaign, Illinois, US. [4].