Lytvyn, O., O. Lytvyn, O. Tkachenko, and O. Gritsay. “Recovery of the Functions of Two Variables With Preservation of the Class Cr(R2) With the Help of Their Traces and the Traces of Their Derivatives up to a Fixed Order on the Given Curve”. Reports of the National Academy of Sciences of Ukraine, no. 2, Mar. 2025, pp. 50-55, doi:10.15407/dopovidi2014.02.050.