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Reusable Launch Vehicle: Technology Development and Test Program
11. Nelson, H.G. 1973. Environmental hydrogen embrittlement of an α-β titanium alloy: Effect of hydrogen pressure. Metallurgical Transactions A 4(1): 364-367.
12. Nelson, H.G. 1974. Aqueous chloride stress-orrosion cracking of titanium—a comparison with environmental hydrogen embrittlement. National Aeronautics and Space Administration Report Number: NASA-TM-X-62314.
13. Private communications with the managers of the NASP program.