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@article{AM2_1997__54_3_137703, author = {Z. P\'ales and S.S. Dragomir and B. Mond}, title = {On a superadditivity property of {Gram's} determinant.}, journal = {Aequationes mathematicae}, pages = {199--204}, publisher = {mathdoc}, volume = {54}, number = {3}, year = {1997}, zbl = {0890.26015}, url = {http://geodesic.mathdoc.fr/item/AM2_1997__54_3_137703/} }
Z. Páles; S.S. Dragomir; B. Mond. On a superadditivity property of Gram's determinant.. Aequationes mathematicae, Tome 54 (1997) no. 3, pp. 199-204. http://geodesic.mathdoc.fr/item/AM2_1997__54_3_137703/