title: [Development of the concept of control levels applicable to radiation control systems].
mesh_terms: D006801:Humans; D009688:Nuclear Reactors / Q000592:standards*; D011835:Radiation Protection / Q000592:standards*
vernacular_title: Razvitie kontseptsii kontol'nykh urovneĭ primenitel'no k praktike radiatsionnogo kontrolia.