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Translated fromMatematicheskie Zametki, Vol. 61, No. 2, pp. 305–311, February, 1997.
Translated by V. E. Nazaikinskii
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Ioffe, A.D., Tikhomirov, V.M. Some remarks on variational principles. Math Notes 61, 248–253 (1997). https://doi.org/10.1007/BF02355736
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DOI: https://doi.org/10.1007/BF02355736