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200 1 $a<<The >>concept and the role of the model in mathematics and natural and social sciences$eproceedings of the Colloquium sponsored by the Division of Philosophy of Sciences of the International Union of History and Philosophy of Sciences organized at Utrecht, January 1960$fby Hans Freudenthal
210   $aDordrecht (NL)$cReidel$d1961
610 0 $aFondamenti delle scienze fisiche e naturali
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702  1$aFreudenthal,$bHans$f<1905-1990>
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996   $aConcept and the role of the model in mathematics and natural and social sciences$9341195
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