"സൈലം" എന്ന താളിന്റെ പതിപ്പുകൾ തമ്മിലുള്ള വ്യത്യാസം

* {{cite journal|author=Muhammad, A.F.|author2=R. Sattler |year=1982|title=Vessel Structure of ''Gnetum'' and the Origin of Angiosperms|journal=American Journal of Botany|volume=69|pages=1004–21 | doi = 10.2307/2442898|issue=6|jstor=2442898|publisher=Botanical Society of America}}

* {{cite book|author=Melvin T. Tyree |author2=Martin H. Zimmermann |title=Xylem Structure and the Ascent of Sap|edition=2nd|isbn=3-540-43354-6|publisher=Springer|year=2003}} recent update of the classic book on xylem transport by the late Martin Zimmermann

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