Recursion Operators and Tri-Hamiltonian Structure of the First Heavenly Equation of Plebański von Sheftel, M.B., Yazıcı, D.

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Evolutionary Hirota Type (2+1)-Dimensional Equations: Lax Pairs, Recursion Operators and Bi-Hamiltonian Structures von Sheftel, M.B., Yazici, D.

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Recursions of Symmetry Orbits and Reduction without Reduction von Malykh, A.A., Sheftel, M.B.

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Partner Symmetries, Group Foliation and ASD Ricci-Flat Metrics without Killing Vectors von Sheftel, M.B., Malykh, A.A.

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