“Methodics of Superlongterm Forecasts of Sun Activity Changes Using Multiply Linear Regression Model”. Visnyk of V. N. Karazin Kharkiv National University. Series Еcоlogy, no. 944 (March 28, 2014): 13–20. Accessed October 24, 2026. https://periodicals.karazin.ua/ecology/article/view/750.