TY  - BOOK
AU  - Bock Hans-Hermann ed.
ED  - The German Classification Society( 14th Annual Con : 1990 : Marburg )
ED  - 
TI  - Classification, data analysis and knowledge organization; models and methods with aplications
U1  - 000SA.073 
PY  - 1991///
CY  - Berlin
PB  - Springer Verlag
KW  - Classification analysis
ER  -