1. 1.Federal Aviation Regulation , Section 25.571," Damage Tolerance and Fatigue Evaluation of Structure," Title 14 Code of Federal Regulations (CFR), Federal Register, 2000 .
2. 2.Federal Aviation Regulation , Section 25.965," Fuel Tank Tests," sub-section b)(2), Title 14 Code of Federal Regulations (CFR), Federal Register, 2000 .
3. Numerical Analysis of Crack Propagation in Cyclic-Loaded Structures