@article{AFM_2007_32_2_a16,
     author = {Jussi V\"ais\"al\"a},
     title = {Quasihyperbolic geometry of domains in {Hilbert} spaces},
     journal = {Annales Fennici Mathematici},
     pages = {559--578},
     year = {2007},
     volume = {32},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AFM_2007_32_2_a16/}
}