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200 1 $a<<An >>introduction to the calculus of variations$fby L.A. Pars
210   $aLondon$cHeinemann$d1962
215   $aXI, 350 p.$d24 cm
610 0 $aAn intoduction to the Calculus of Varia tions
676   $a515.64
700  1$aPars,$bL.A.$0344520
801  0$aIT$bUNINA$gRICA$2UNIMARC
901   $aBK
912   $a990000842600403321
952   $a02 36 B 16$b3809$fFINBN
959   $aFINBN
996   $aIntroduction to the Calculus of Variations$9338440
997   $aUNINA
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