BELKIN, Vladimir Alexeyevich.
 Oil prices and solar activity: evidence of strong ties.
<strong>Челябинский гуманитарий</strong>, [S.l.], n. 1 (50), p. 7-19, feb. 2020.
ISSN 1999-5407. Доступно на: &lt;<a href="https://journals.csu.ru/index.php/chelgum/article/view/384" target="_new">https://journals.csu.ru/index.php/chelgum/article/view/384</a>&gt;. Дата доступа: 17 sep. 2024