Miroshnychenko Sergii, Tkachenko Igor, Miroshnychenko Yuryi. About two types of Nonstationary Stochastic Processes. IJFSCFRT. 2024;21(1):48-53. Accessed September 21, 2025. https://ijfscfrtjournal.isrra.org/Formal_Sciences_Journal/article/view/1032