TY JOUR TI Methodological Approaches to Measurement of Carbon-14 for Control of its Radiation Impact on the Personnel and the Public KW radiation safety KW carbon-14 KW control of specific activity KW internal dose KW soil KW vegetation JO Medical Radiology and radiation safety AU Klochkov, V.N. AU Kuznetsova, L.I. AU Eremina, N.A. AU Kabanov, D.I. AU Maksimov, A.A. AU Berezin, S.V. AU Androsova, A.A. AU Klochkova, E.V. AU Surin, P.P. AU Velichko, V.K. PY 2021 IS 66 PB Federal Medical Biological Agency of Russia