Voront s ov-Vel i a minov, B. A. (Boris Aleksandrovich), 1904- Laplas / B.A. Vorontsov-Vel iaminov.

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Voront s ov-Vel i a minov, B. A. (Boris Aleksandrovich), 1904-

Laplas / B.A. Vorontsov-Vel iaminov.

Laplace, Pierre Simon, marquis de, 1749-1827 -- Knowledge -- Astronomy.

Astronomy -- History.

Astronomers -- France -- Biography.