Lev Pontryagin · 1969 | ChronoCite

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← Lev Pontryagin timeline

Jun 15, 1969Documented record84% confidence

Awarded Hero of Socialist Labour (1969).

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Captured 2026-08-18 from Wikipedia. The archived copy is preserved so this citation survives link rot.

Lev Pontryagin · 1969 | ChronoCite