Petrokushyn, O. and Bezrodna, I. 2025. Pulsed neutron logging in the world and in Ukraine: beggining, establishment, present. Visnyk of Taras Shevchenko National University of Kyiv. Geology. 2, 109 (Jul. 2025), 31–39. DOI:https://doi.org/10.17721/1728-2713.109.04.