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https://hu.wikipedia.org/wiki/Frank_Whittle
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http://id.loc.gov/authorities/names/n80159795.html
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https://id.ndl.go.jp/auth/ndlna/00527312
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http://snaccooperative.org/ark:/99166/w6031qrs
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https://www.worldcat.org/identities/lccn-n80159795/
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https://en.wikipedia.org/wiki/Boeing_377_Stratocruiser
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https://www.boeing.com/history/products/model-377-stratocruiser.page
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http://www.aviation-history.com/boeing/377.html
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https://hu.wikipedia.org/wiki/Alfred_Dreyfus
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https://en.wikipedia.org/wiki/Alfred_Dreyfus
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