@article{AGMS_2016_4_1_a0,
     author = {Cheeger, Jeff and Kleiner, Bruce and Schioppa, Andrea},
     title = {Infinitesimal {Structure} of {Differentiability} {Spaces,} and {Metric} {Differentiation}},
     journal = {Analysis and Geometry in Metric Spaces},
     publisher = {mathdoc},
     volume = {4},
     number = {1},
     year = {2016},
     zbl = {1360.30047},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AGMS_2016_4_1_a0/}
}