Phenolic complex of red wine materials from grapes growing in the CrimeaDmitry Yermolin, Galina Yermolina, Yuriy Gerber, Daria Zadorozhnaya and Zinaida KotolovetsE3S Web Conf., 175 (2020) 08002DOI: https://doi.org/10.1051/e3sconf/202017508002