TY  - JOUR
AU  - Vladica Andrejić
TI  - Strong duality principle for four-dimensional Osserman manifolds
JO  - Kragujevac Journal of Mathematics
PY  - 2010
SP  - 17 
VL  - 33
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/KJM_2010_33_a1/
LA  - en
ID  - KJM_2010_33_a1
ER  -