Counterexamples in the Theory of alpha -Sets. - Vladimir N. Ushakov; Aleksandr A. Ershov; Maksim Pershakov (MOTOR (2), 2019)

On Guaranteed Estimates of the Area of Convex Subsets of Compact Sets on the Plane. - Vladimir N. Ushakov; Aleksandr A. Ershov (Autom. Remote. Control., 2021)