TY  - JOUR
AU  - Hisao Yoshihara
TI  - Double coverings of rational surface.
JO  - Manuscripta mathematica
PY  - 1992
SP  - 279
EP  - 292
VL  - 75
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MM2_1992__75_4_155724/
ID  - MM2_1992__75_4_155724
ER  -