On the existence of solutions of one-dimensional fourth-order equations за авторством Shokooh, S., Afrouzi , G. A., Hadjian, A., Shokooh, S., Afrouzi , G. A., Hadjian, A.

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Existence and multiplicity of solutions for a class of Hamiltonian systems за авторством Khachnaoui, Khaled, Khachnaoui, Khaled

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Existence of three weak solutions for fourth-order elastic beam equations on the whole space за авторством Tavani , M. R. H., Tavani , M. R. H.

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