Niinemets, Ülo Petiole mechanics, leaf inclination, morphology, and investment in support in relation to light availability in the canopy of Liriodendron tulipifera. [electronic resource] - Oecologia Jun 2002 - 21-33 p. digital Publication Type: Journal Article ISSN: 1432-1939 Standard No.: 10.1007/s00442-002-0902-z doi