Кумратова, А. М., Е. В. Попова, Т. А. Недогонова, and А. И. Василенко. “Detection of Trend-Seasonal Components in Time Series of Economic Processes”. Modern Economics: Problems and Solutions, Vol. 6, June 2018, pp. 20-30, doi:10.17308/meps.2018.6/1907.