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@article{MS2_1968__23_166063, author = {A.J. Ellis}, title = {On {Partial} {Orderings} of {Normed} {Spaces.}}, journal = {Mathematica Scandinavica}, pages = {123--132}, publisher = {mathdoc}, volume = {23}, year = {1968}, zbl = {0181.13101}, url = {http://geodesic.mathdoc.fr/item/MS2_1968__23_166063/} }
A.J. Ellis. On Partial Orderings of Normed Spaces.. Mathematica Scandinavica, Tome 23 (1968), pp. 123-132. http://geodesic.mathdoc.fr/item/MS2_1968__23_166063/