TY  - JOUR
AU  - Ulf Persson
TI  - Configurations of Kodaira fibers on rational elliptic surfaces.
JO  - Mathematische Zeitschrift
PY  - 1990
SP  - 1
EP  - 48
VL  - 205
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZ_1990__205_3_174157/
ID  - MZ_1990__205_3_174157
ER  -