Picea × lutzii (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Picea × lutzii" in English language version.

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handle.net

"Common Trees of Alaska" (PDF). Archived (PDF) from the original on 2015-11-23. Retrieved 2015-11-28.

"Common Trees of Alaska" (PDF). Archived (PDF) from the original on 2015-11-23. Retrieved 2015-11-28.
"A Giant Christmas Tree's 4000 Mile Journey from Alaska to Capitol Hill". www.usda.gov. Archived from the original on 2021-03-24. Retrieved 2021-10-08.
"Classification of spruce beetle hazard in Lutz spruce (Picea × lutzii) stands on the Kenai Peninsula Alaska" Archived 2017-12-26 at the Wayback Machine, by K. M. Reynolds and E. H. Holsten, in Canadian Journal of Forest Research, 24:5, p 1015-1021, 1994, at ResearchGate