00938naa#a2200241#i#450# EN\\bibl\98144 20260310092534.2 2075-1338 20250427b2025####ek#y0engy0150####ca RU The Use of Natural Materials with a Low Content of Radionuclides as Protection from the External Background During Laboratory Gamma-Ray Spectrometric and Radiometric Measurements Journal article Moscow Scientific-Production Enterprise “Dosa” 2025 8 с. Journal article local Аппаратура и приборы для исследовательских работ. 539.16.07 Povarov Vladimir P. Rosnovsky Sergey V. Yurchenko Evgeniy I. Karasev Vyacheslav N. Dobrynin Viktor V. Sokolov Fedor G. Smorodinov Andrey A. doza.editorum.ru