Tree-ring width of Quercus species from historical object sample 6137B/03A, Netherlands, Zutphen
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资源简介：
Species: Quercus species; No of rings: 40; first year: 1221; end year: 1261; Pith: not applicable; Heartwood: absent; Sapwood: absent; Number of sapwood rings: 0; Last ring under bark: absent
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Preßler, Erhard创建时间：
2009-01-01
