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@article{IM_1972__17_142155, author = {Larry J. Gerstein}, title = {Orthogonal {Decomposition} of {Modular} {Quadratic} {Forms.}}, journal = {Inventiones mathematicae}, pages = {21--30}, publisher = {mathdoc}, volume = {17}, year = {1972}, zbl = {0244.15011}, url = {http://geodesic.mathdoc.fr/item/IM_1972__17_142155/} }
Larry J. Gerstein. Orthogonal Decomposition of Modular Quadratic Forms.. Inventiones mathematicae, Tome 17 (1972), pp. 21-30. http://geodesic.mathdoc.fr/item/IM_1972__17_142155/