TY  - JOUR
AU  - Nikolaos Askitas
TI  - Embeddings of 2-spheres in 4-manifolds.
JO  - Manuscripta mathematica
PY  - 1996
SP  - 35
EP  - 48
VL  - 89
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MM2_1996__89_3_156148/
ID  - MM2_1996__89_3_156148
ER  -