Penrose, Roger <br/><br/>
Roger penrose collected works. Vol.2 
Roger Penrose 
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 - Oxford Clarendon Press, Oxford  2011 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>Biography-Mathematicians
<br/><br/><label>Dewey Class. No.: </label>R  925.1  PEN-R.2