TY  - JOUR
AU  - Günter M. Ziegler
TI  - On the difference between real and complex arrangements.
JO  - Mathematische Zeitschrift
PY  - 1993
SP  - 1
EP  - 12
VL  - 212
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZ_1993__212_4_174469/
ID  - MZ_1993__212_4_174469
ER  -