@article{10_4007_annals_2015_182_3_5,
     author = {Jeff Cheeger and Aaron Naber},
     title = {Regularity of {Einstein} manifolds  and the codimension $4$ conjecture},
     journal = {Annals of mathematics},
     pages = {1093--1165},
     publisher = {mathdoc},
     volume = {182},
     number = {3},
     year = {2015},
     doi = {10.4007/annals.2015.182.3.5},
     mrnumber = {3418535},
     zbl = {06514752},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4007/annals.2015.182.3.5/}
}