TY  - JOUR
AU  - Val, Patrick du
TI  - Rational Surfaces with Exceptional Unodes
JO  - Canadian journal of mathematics
PY  - 1967
SP  - 938
EP  - 951
VL  - 19
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1967-086-8/
DO  - 10.4153/CJM-1967-086-8
ID  - 10_4153_CJM_1967_086_8
ER  -