TY  - JOUR
AU  - W/lodzimierz Jelonek
TI  - On certain four-dimensional
 almost Kähler manifolds
JO  - Colloquium Mathematicum
PY  - 2007
SP  - 7
EP  - 18
VL  - 108
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/cm108-1-2/
DO  - 10.4064/cm108-1-2
LA  - en
ID  - 10_4064_cm108_1_2
ER  -