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Volume 245, Issue 4
March 2020This issue is a translation of Itogi Nauki i Tekhniki. Sovremennaya Matematika i Ee Prilozheniya. Tematicheskie Obzory (Progress in Science and Technology. Contemporary Mathematics and Its Applications. Thematic Surveys), Vol. 145, Geometry and Mechanics, 2018.
6 articles in this issue