@article{GMJ_2001__8_2_50164,
     author = {Chelidze, G.},
     title = {On a characterisation of inner product spaces.},
     journal = {Georgian mathematical journal},
     pages = {231--236},
     year = {2001},
     volume = {8},
     number = {2},
     zbl = {1016.46024},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/GMJ_2001__8_2_50164/}
}