@article{10_4007_annals_2012_176_1_3,
     author = {Alex Eskin and David Fisher and Kevin Whyte},
     title = {Coarse differentiation of quasi-isometries {I:} {Spaces} not quasi-isometric to {Cayley} graphs},
     journal = {Annals of mathematics},
     pages = {221--260},
     publisher = {mathdoc},
     volume = {176},
     number = {1},
     year = {2012},
     doi = {10.4007/annals.2012.176.1.3},
     mrnumber = {2925383},
     zbl = {06074014},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4007/annals.2012.176.1.3/}
}