1. Direct comparison of extrapolation chamber measurements of the absorbed dose rate for beta radiation between PTB (Germany) and VNIIM (Russia);Behrens;Metrologia,2011
2. The National Primary Standard of the PTB for Realizing the Unit of the Absorbed Dose Rate to Tissue for Beta Radiation;Böhm,1986
3. Some Methods of Beta Radiation Dosimetry and Calibration (Ph.D. thesis);Caldas,1980
4. Performance characteristics of an extrapolation chamber for beta radiation detection;Caldas;J. Appl. Radiat. Isot.,1986
5. ISO, International Organization for Standardization, 2004. Nuclear energy—Reference beta-particle radiation—Part 2: Calibration fundamentals related to basic quantities characterizing the radiation fields. Geneve, ISO/FDIS 6980-2:2004.