@article{IM_1995__120_2_144287,
     author = {Xiaochun Rong},
     title = {Rationality of geometric signatures of complete 4-manifolds.},
     journal = {Inventiones mathematicae},
     pages = {513--554},
     publisher = {mathdoc},
     volume = {120},
     number = {2},
     year = {1995},
     zbl = {0830.53037},
     url = {http://geodesic.mathdoc.fr/item/IM_1995__120_2_144287/}
}