Kobilskaya, E. B., and V. P. Lyashenko. “A Method for Solving a Boundary Value Problem in a Multilayered Area”. Bulletin of V.N. Karazin Kharkiv National University, Series «Mathematical Modeling. Information Technology. Automated Control Systems», Vol. 46, June 2020, pp. 25-36, doi:10.26565/2304-6201-2020-46-03.