Ivanov, Dmitry, Shaklein Victor Mikhailovich, Mamontov Alexander Stepanovich, and Mikova Svetlana Stanislavovna. “The Concept of Spirit in the Structure of Yuri Shevchuk’s Worldview”. Opción 340 (June 12, 2019): 374-394. Accessed September 26, 2025. http://www.produccioncientifica.luz.edu.ve/index.php/opcion/article/view/24353.