1. Models for backscattering of millimeter waves from vegetation canopies;Borel-Donohue,1988
2. Genetic variation in functional and structural productivity determinants in poplar;Ceulemans,1990
3. Leaf dimorphism in Populus trichocarpa;Critchfield;Am. J. Bot.,1960
4. Biomas production in first and second year intensively cultured poplar clones as related to leaf photosynthetic performance and radiation intercepting foliage canopy;Impens,1989
5. Effects of leaf morphology and orientation on light interception and photosynthesis in Populus;Isebrands,1986