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Newhouse, A. E.; Schrodt, F; Liang, H.; Maynard, C. A.; Powell, W. A. (2007). "Transgenic American elm shows reduced Dutch elm disease symptoms and normal mycorrhizal colonization". Plant Cell Rep. 26 (7): 977–987. doi:10.1007/s00299-007-0313-z. PMID17310333. S2CID21780088.
Newhouse, A. E.; Schrodt, F; Liang, H.; Maynard, C. A.; Powell, W. A. (2007). "Transgenic American elm shows reduced Dutch elm disease symptoms and normal mycorrhizal colonization". Plant Cell Rep. 26 (7): 977–987. doi:10.1007/s00299-007-0313-z. PMID17310333. S2CID21780088.
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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. Archived(PDF) from the original on 26 October 2017. Retrieved 26 October 2017.
Fu, L., Xin, Y. & Whittemore, A. (2002). Ulmaceae, in Wu, Z. & Raven, P. (eds) Flora of ChinaArchived 10 November 2006 at the Wayback Machine, Vol. 5 (Ulmaceae through Basellaceae). Science Press, Beijing, and Missouri Botanical Garden Press, St. Louis, US.
Brasier, C. M. (1996). New horizons in Dutch elm disease control. Pages 20-28 in: Report on Forest ResearchArchived 28 June 2007 at the Wayback Machine, 1996. Forestry Commission. HMSO, London, UK.
Hiemstra, J.A.; et al. (2007). Belang en toekomst van de iep in Nederland [Importance and future of the elm in the Netherlands]. Wageningen, Netherlands: Praktijkonderzoek Plant & Omgeving B.V. Archived from the original on 28 September 2014. Retrieved 26 October 2017.
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. Archived(PDF) from the original on 26 October 2017. Retrieved 26 October 2017.
Ware, G. (1995). Little-known elms from China: landscape tree possibilities. Journal of ArboricultureArchived 30 November 2007 at the Wayback Machine, (November 1995). International Society of Arboriculture, Champaign, Illinois, US.
Heybroek, Hans M. (1983). Burdekin, D.A. (ed.). "Resistant elms for Europe"(PDF). Forestry Commission Bulletin (Research on Dutch Elm Disease in Europe) (60). London: HMSO: 108–113. Archived(PDF) from the original on 15 February 2017.
Heybroek, H.M. (1993). "The Dutch Elm Breeding Program". In Sticklen, Mariam B.; Sherald, James L. (eds.). Dutch Elm Disease Research. New York, USA: Springer-Verlag. pp. 16–25. ISBN978-1-4615-6874-2. Archived from the original on 26 October 2017. Retrieved 26 October 2017.
Mittempergher, L; Santini, A (2004). "The history of elm breeding"(PDF). Investigacion Agraria: Sistemas y Recursos Forestales. 13 (1): 161–177. Archived(PDF) from the original on 11 February 2017.
Brookes, A. H. (2013). Disease-resistant elm cultivars, Butterfly Conservation trials report, 2nd revision, 2013. Butterfly Conservation, Hants & IoW Branch, England. "Archived copy"(PDF). Archived from the original(PDF) on 29 May 2014. Retrieved 30 January 2014.{{cite web}}: CS1 maint: archived copy as title (link)
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. Archived(PDF) from the original on 26 October 2017. Retrieved 26 October 2017.
Brasier, C. M. & Mehotra, M. D. (1995). Ophiostoma himal-ulmi sp. nov., a new species of Dutch elm disease fungus endemic to the Himalayas. Mycological Research 1995, vol. 99 (2), 205–215 (44 ref.) ISSN0953-7562. Elsevier, Oxford, UK.
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Hiemstra, J.A.; et al. (2007). Belang en toekomst van de iep in Nederland [Importance and future of the elm in the Netherlands]. Wageningen, Netherlands: Praktijkonderzoek Plant & Omgeving B.V. Archived from the original on 28 September 2014. Retrieved 26 October 2017.