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*035  $a(NO-LaBS)13371567(bibid)
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*1001 $aBoyce, William E.$0(NO-TrBIB)90184459$_15242400
*24510$aElementary differential equations and boundary value problems$cWilliam E. Boyce and Richard C. DiPrima
*250  $a2nd ed.
*260  $aNew York$bWiley$cc1969
*300  $a1 b. (flere pag.)$bill.
*7001 $aDiPrima, Richard C.$0(NO-TrBIB)90204864$_15242500
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^