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@article{MZ_1964__84_170259, author = {R.A. Rankin}, title = {On the minimal points of perfect quadratic forms.}, journal = {Mathematische Zeitschrift}, pages = {228--232}, publisher = {mathdoc}, volume = {84}, year = {1964}, zbl = {0124.27601}, url = {http://geodesic.mathdoc.fr/item/MZ_1964__84_170259/} }
R.A. Rankin. On the minimal points of perfect quadratic forms.. Mathematische Zeitschrift, Tome 84 (1964), pp. 228-232. http://geodesic.mathdoc.fr/item/MZ_1964__84_170259/