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다국어입력
1
Porter, Andrew, 670-P844m | Summit Books | 1987 670-P844m,
2
Porter, Alan L., 331-P844g | North-Holland | 1980 331-P844g,
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Abbas Emami-Naeini, | Institute of Electrical and Electronics Engineers | 2003 ,
4
J. David Porter, | INST ELEC & ELEC ENGINEERS | 2008 ,
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헨리, 오, 843-4 | 바로이북 | 2018 843-4,
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Hussam, R.N., | American Economic Assn | 2008 ,