00543naa#a2200169#i#450# EN\\bibl\93092 20250310181336.1 2221-3260 20241130b2024####ek#y0engy0150####ca RU On the issue of the substantive characteristics of crowdfunding Journal article Yaroslavl Yaroslavl State Technical University 2024 11 с. Journal article local Ivantsov Dmitry Alexandrovich Nalivaichenko Ekaterina Vladimirovna ystu.editorum.ru