TY JOUR TI Studying the patterns of accumulation of radioisotopes of natural and man-made origin using the example of the aboveground part of the wormwood of the bitter flora of the urbanized territories of the Central Black Earth Region KW -226 JO Bulletin of Nizhnevartovsk State University AU Dyakova, N.. PY 2024 IS PB Nizhnevartovsk State University