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Leçons sur les invariants intégraux by Cartan, Élie19 dic, 2019 Tags=[celestial mechanics, Differential equations] Formats=[DJVU] LCN=[QA 371 C37] OCLC=[609143037] Year=[1922]
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Lessons on Integral Invariants by Cartan, Élie & Delphenich, D.H.19 dic, 2019 Tags=[celestial mechanics, Differential equationst] Formats=[PDF] Year=[1922]
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