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999 _c182732
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022 _a19305745
041 _aEN
082 _223
245 _aThe Magazine for professional engineers, no.10-12(2014)
260 _aAlexandria:
_bNational Society of Professional Engineers,
_c2014.
362 _a1.10.2014-31.12.2014
942 _cPRBP