ОПРЯ, А. Т. Methodological support of economic forecast (in the context of hypothesis of stability and regularity development of phenomena in the temporal space). Scientific Progress & Innovations, [S. l.], n. 1, p. 201–207, 2012. DOI: 10.31210/visnyk2012.01.50. Disponível em: https://journals.pdau.edu.ua/visnyk/article/view/538. Acesso em: 16 sep. 2025.