Brunetkin, O., M. Maksymov, O. Maksymova, and A. Zosymchuk. “Development of the Method of Approximate Solution to the Nonstationary Problem on Heat Transfer through a Flat Wall”. Eastern-European Journal of Enterprise Technologies, vol. 6, no. 5 (90), Dec. 2017, pp. 31-40, doi:10.15587/1729-4061.2017.118930.