Petro GUCHEK, Igor ASTIONENKO, Oleg DUDCHENKO, Olena LITVINENKO and Anatolii KHOMCHENKO, “Inherited Properties of Mixed Finite Elements,” Proceedings of the 37th International Business Information Management Association (IBIMA), ISBN: 978-0-9998551-6-4, 30-31 May 2021, Cordoba, Spain, p 11307-11317.
Oksana HAIDAI, Raisa NAUMENKO, Mykola DURMAN, Lina BONDAREVA, Roman BYKOV and Volodymyr KLIUTSEVSKYI, “Ukraine’s International Commitments to Resolve Regulatory Issues” Proceedings of the 34th International Business Information Management Association (IBIMA), ISBN: 978-0-9998551-3-3, 13-14 November 2019, Madrid, Spain, p. 10090-10099.