TY  - BOOK
AU  - Belnap, Jayne, ed.
AU  - Lange, otto L., ed.
TI  - Biological soil crusts: structure, function and management
T2  - Ecological studies
SN  - 3540410759
U1  - 574.526404 
PY  - 2001///
CY  - Berlin
PB  - Springer-Verlag
ER  -