Petrenko, Iryna, and Volodymyr Shvets. 2025. “Poltava Period of Life and Scientific Path of the Researcher-Historian Petro Trygub (1935-2016)”. Eminak: Scientific Quarterly Journal, no. 3(51) (November), 13-27. https://doi.org/10.33782/eminak2025.3(51).804.