On the spectral criterion of stability in the problem of small motions of an ideal capillary fluid with disconnected free surface von N. D. Kopachevskij, Z. Z. Sitshaeva

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On equilibrium and stability of capillary fluid with disconnected free surface in an open vessel von N. D. Kopachevskij, Z. Z. Sitshaeva

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Complete Volterra Integrodifferential Equations of the Second Order Unsolved with Respect to the Higher Derivative von N. D. Kopachevskij, E. V. Sjomkina

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