Aleksandr Mikhailovich Lyapunov (the 125th anniversary of his birth)
Citation Example: Martynyuk A. A., Mitropolskiy Yu. A., Zubov V. I. Aleksandr Mikhailovich Lyapunov (the 125th anniversary of his birth) // Ukr. Mat. Zh. - 1982. - 34, № 4. - pp. 536—537.
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