Trade-economic cooperation of Ukraine and China within COVID-19 Pandemic and in post-pandemic timeOlha Yatsenko, Tetiana Tsygankova, Iryna Horbachova, Oksana Aksyonova and Valeriia OsadchukE3S Web Conf., 255 (2021) 01031DOI: https://doi.org/10.1051/e3sconf/202125501031