Urtre (Norwegian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Urtre" in Norwegian language version.

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botany.pl

bomax.botany.pl

conifers.org

doi.org

efloras.org

harvard.edu

arnoldia.arboretum.harvard.edu

jstor.org

  • R.A. Stockey, G.W. Rothwell og A.B. Falder (2001). «Diversity among taxodioid conifers: Metasequoia foxii sp. nov. from the Paleocene of Central Alberta, Canada». International Journal of Plant Sciences. 162 (1): 221–234. ISSN 1058-5893. JSTOR 10.1086/317914. doi:10.1086/317914. 

missouribotanicalgarden.org

nb.no

urn.nb.no

  • A. Mitchell (1977). Trær i skog og hage. Oversatt av I. Gjærevoll. Tiden. s. 94–95. ISBN 82-10-01282-7. 
  • E. Nielsen (1952). «Levende fossiler». I G. Gjessing, K. Evang og G. Randers. Vi vet. 4. Oslo: Tiden. s. 1459–1464. 

nih.gov

ncbi.nlm.nih.gov

semanticscholar.org

pdfs.semanticscholar.org

uio.no

nhm.uio.no

web.archive.org

worldcat.org