TY  - BOOK
AU  - Ahnert, Frank.
TI  - Geomorphological models: : theoretical and emprirical aspects
T2  - CATENA: Supplement
U1  - 351.4 
PY  - 1987///
CY  - Destedt, West Germany
PB  - CATENA
KW  - Geografía física
N1  - D42-15
ER  -