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2Published in Journal of the Franklin Institute (1956)Get access
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3Published in Journal of the Franklin Institute (1957)Get access
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4Published in Journal of the Franklin Institute (1848)Get access
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9Published in Journal of the Franklin Institute (1876)Get access
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10Published in Journal of the Franklin Institute (1878)Get access
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11Published in Journal of the Franklin Institute (1875)Get access
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12Published in Journal of the Franklin Institute (1877)Get access
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13Published in Journal of the Franklin Institute (1877)Get access
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14Published in Journal of the Franklin Institute (1872)Get access
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17Published in Journal of the Franklin Institute (1960)Get access
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18Published in Journal of the Franklin Institute (1956)Get access
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19
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20Published in Journal of the Franklin Institute (1963)Get access
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