@article{10_4007_annals_2017_185_1_6,
     author = {Boris Ettinger and Hans Lindblad},
     title = {A sharp counterexample to local existence of low regularity solutions to {Einstein} equations in wave coordinates},
     journal = {Annals of mathematics},
     pages = {311--330},
     publisher = {mathdoc},
     volume = {185},
     number = {1},
     year = {2017},
     doi = {10.4007/annals.2017.185.1.6},
     mrnumber = {3583356},
     zbl = {06686588},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4007/annals.2017.185.1.6/}
}