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- [7] ELEMENTARY PROOF OF SHARP UNIQUENESS THEOREMS FOR SECOND-ORDER INITIAL-VALUE PROBLEMS AMERICAN MATHEMATICAL MONTHLY, 1974, 81 (04): : 377 - 379
- [9] Fixed-Point Theorems in Complete Gauge Spaces and Applications to Second-Order Nonlinear Initial-Value Problems JOURNAL OF FUNCTION SPACES AND APPLICATIONS, 2013,