@article{EXMATH_2007_2007_1_a9,
     author = {Bandyopadhyay, P. and  Roy, A. K.},
     title = {Uniqueness of invariant {Hahn-Banach} extensions.},
     journal = {Extracta mathematicae},
     pages = {93-114},
     publisher = {mathdoc},
     volume = {22},
     number = {2},
     year = {2007},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EXMATH_2007_2007_1_a9/}
}