TY  - BOOK
AU  - Dirickx,Yvo M I
AU  - Jennergren,L Peter
TI  - Systems analysis by multilevel methods: with applications to economics and management 
SN  - 047127626X
PY  - 1979///
CY  - Chichester
PB  - Wiley
KW  - Management
KW  - System analysis
KW  - Economics, Mathematical
ER  -