Lytvyn, O., Lytvyn, O., Tkachenko, O. and Gritsay, O. (2025) “ 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. Kyiv, Ukraine, (2), pp. 50–55. doi: 10.15407/dopovidi2014.02.050.