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Reference11 articles.
1. Mordell, L. J., The representation of a definite quadratic form as a sum of two others, Ann. of Math., 1937, 38: 751.
2. Erdös, P., Ko Chao, On definite quadratic forms, which are not the sum of two definite or semidefinite forms, Acta Arith., 1939, 3: 102.
3. Erdös, P., Ko Chao, Some results on definite quadratic forms, J. London Math. Soc., 1938, 13: 217.
4. Zhu Fu-zu, Construction of nondecomposable positive definite quadratic forms, Sci. Sinica, Ser. A, 1987, 30(1): 19.
5. Zhu Fuzu, On nondecomposability and indecomposability of quadratic forms, Sci. Sinica, Ser. A, 1988, 31(3): 265.