@article{10_4153_CJM_2005_028_6,
     author = {Finster, Felix and Kraus, Margarita},
     title = {Curvature {Estimates} in {Asymptotically} {Flat} {Lorentzian} {Manifolds}},
     journal = {Canadian journal of mathematics},
     pages = {708--723},
     year = {2005},
     volume = {57},
     number = {4},
     doi = {10.4153/CJM-2005-028-6},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-2005-028-6/}
}