Albert van Helden: idioot dat er nu pas een Nederlandse vertaling van Galileo's sleutelwerk verschijnt | de Volkskrant
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Invention of the Telescope: Transactions, American Philosophical Society (vol. 67, part 4) (Transactions of the American Philosophical Society)
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On Sunspots (9780226707167): Galileo Galilei, Christoph Scheiner, Eileen Reeves, Albert van Helden, Eileen Reeves and Albert van Helden - BiblioVault
September 2014 ALBERT VAN HELDEN Personal Information Born: 7 March 1940, The Hague, Netherlands Current address: Plantijnstra
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The origins of the telescope - Albert van Helden, Sven Dupré, Rob van Gent - (ISBN: 9789069846156) | De Slegte
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