00663naa#a2200193#i#450# EN\\bibl\82285 20241212035222.4 2413-046X 20240427b2024####ek#y0engy0150####ca RU COMPARATIVE ANALYSIS OF CRYPTOCURRENCY DEMO TRADING PLATFORMS Journal article Moscow Electronic science 2024 18 с. Journal article local Экономика. Народное хозяйство. Экономические науки. 33 Rusakov Alexey Mikhailovich Shchapov Alexander Sergeevich Grishin Nikita Vladislavovich qje.su