TY JOUR TI FORECASTING THE DYNAMICS OF THE PRIMARY AND SECONDARY HOUSINGCOST IN RUSSIA KW time series KW regression model KW cost per square meter KW housing market KW dummy variables KW forecast KW secondary housing KW primary housing JO Science & World AU Tsvil, M.M. AU Khaishbashyan, A.M. PY 2025 IS 0 PB LLC "Perspektiva"