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Shoemaker, H. E.; Shumate, C. P. . (1970). SAE Technical Paper Series [SAE International Farm, Construction, Industrial Machinery and Powerplant Meetings - (SEP. 14, 1970)] SAE Technical Paper Series - Techniques for Reducing Sand and Dust Erosion in Small Gas Turbine Engines. , 1(), –. doi:10.4271/700706 
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