Crowdfunding regulation models: international and Russian experience in context of sustainable developmentElena Prokofeva, Marina Chudinovskikh, Yulia Kuvaeva, Olesya Kononenko and Nadezhda BoronenkovaE3S Web Conf., 208 (2020) 06009DOI: https://doi.org/10.1051/e3sconf/202020806009