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- 、榆樹(shù)(Ulmus pumila L.)Rupr.) and elm ( Ulmus pumila L.)
- 本文以十年生白榆（Ulmus pimila linn.）Eighteen white elm (Ulmus pimila linn.)
- 常綠榆(Ulmus lanceaefolia Rox b.exwall)木材構造及我國榆屬商品材分類(lèi)WOOD STRUCTURE OF EVERGREEN ELM (ULMUS LANCEAEFOLIA) AND CLASSIFICATION OF THE COMMERCIAL TIMBER IN CHINESE ELM
