REFERENCES 



1. A. Piccard. Earth, sky and sea. New York, Oxford University Press, 1956. 



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3. J. G. Moldenhauer, et al. "The design, fabrication and testing of acrylic 

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4. Rohm and Haas Company. Plexiglas handbook for aircraft engineers, 2d 

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6. Pennsylvania State University. Ordnance Research Laboratory. Report 

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7. . : Report no. NOrd 16597-97: The effects of shell 



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8. J. D. Stachiw. "The influence of joint strength and its location between 

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9. J. D. Stachiw. "New approach to the assembly of cylindrical 'hulls from 

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pp. 50-52. 



10. Pennsylvania State University. Ordnance Research Laboratory. Report 

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12. . Report 1757: The effect of initial imperfections on the collapse 

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