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Chapitre II: Essai...
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Leonhard (1765). De motu
rectilineo trium corporum se
mutuo attrahentium (PDF).
Euler L, Nov. Comm. Acad. Imp. Petropolitanae, 10, pp. 207–242...
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Leonhard (1765). De motu
rectilineo trium corporum se
mutuo attrahentium (PDF). Wolf,
Abraham (1939).
History of Science, Technology, and Philosophy...