@article{10_4064_cm108_1_3,
     author = {W/lodzimierz Jelonek},
     title = {On almost {K\"ahler} type $(2G_3)$ 4-manifolds},
     journal = {Colloquium Mathematicum},
     pages = {19--29},
     publisher = {mathdoc},
     volume = {108},
     number = {1},
     year = {2007},
     doi = {10.4064/cm108-1-3},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm108-1-3/}
}