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Ulmus 'Columella' (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Ulmus 'Columella'" in English language version.

refsWebsite
Global rank English rank
1books.google.com
3rd place
3rd place
1wur.nl
8,218th place
8,579th place
1disease-resistant-elms.org
low place
low place
1brighton-hove.gov.uk
low place
low place

books.google.com

  • 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. ISBN 978-1-4615-6874-2. Retrieved 26 October 2017.

brighton-hove.gov.uk

disease-resistant-elms.org

  • Butterfly Conservation (2023). Disease-resistant elm cultivars [2], Butterfly Conservation, Lulworth, England.

wur.nl

edepot.wur.nl

  • Tijdgat, M. (2020). Ulmus– Gebruikswaarde- en sortimentsonderzoek in de praktijk. (Ulmus– Use, value, and range research in practice. ) Dendroflora Nr. 56-2020, p. 98-99 [1]