The ecological significance of interspecific variation and phenotypic plasticity in root tissue structure of grasses [microform] /
Wahl, Stefan.
Eidgenössische Technische Hochschule Zürich.
[Zürich] : Swiss Federal Institute of Technology Zürich,
2000.
"ETH-DISS 13656"--Microfiche header.
Thesis (doctoral)--Swiss Federal Institute of Technology Zürich, 2000.
Includes bibliography.