1
by Pythagoras
Published 1786
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2
Published 1825
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3
by Dupont, Paul
Published 1839
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6
by Pythagoras
Published 1862
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8
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9
by Goovaerts, Alphonse
Published 1880
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10
Published 1885
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11
Published 1902
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13
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14
by Lefevre, Théotiste
Published 1999
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15
by Lefevre, Théotiste
Published 1999
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