@article{10_4153_CMB_2016_019_8,
     author = {Garc{\'\i}a-Pacheco, Francisco Javier and Hill, Justin R.},
     title = {Geometric {Characterizations} of {Hilbert} {Spaces}},
     journal = {Canadian mathematical bulletin},
     pages = {769--775},
     year = {2016},
     volume = {59},
     number = {4},
     doi = {10.4153/CMB-2016-019-8},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-2016-019-8/}
}