@article{IM_1978__49_142601,
     author = {Selman Akbulut},
     title = {On {Representing} {Homology} {Classes} of {4-Manifolds.}},
     journal = {Inventiones mathematicae},
     pages = {193--198},
     publisher = {mathdoc},
     volume = {49},
     year = {1978},
     zbl = {0395.57013},
     url = {http://geodesic.mathdoc.fr/item/IM_1978__49_142601/}
}