TY  - BOOK
AU  - Scharf,Burkhard W.
AU  - Björk,Sven
TI  - Limnology of Eifel maar lakes / 
SN  - 3510470397
PY  - 1992///
CY  - Stuttgart
PB  - Schweizerbart
N1  - Abstracts in English and German, articles in English
ER  -