Etiqueta de registo: 00257nx 2200097n 45
001 250691
095 ## $aPTBN00215838
100 ## $a19970530apory0103 ba
152 ## $aRPC
200 #1 $aCalzolari,$bGiorgio
801 #0 $aPT$bBN
810 ## $aConditional heteroskedasticity in nonlinear simultaneous equations
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