1. New finding for the radiometric-electronic measurement of coating;Ott;Chemie-Ingineur Tecknik,1977
2. The statistical error in the non-destructive coating thickness measurements by means of radioactive radiation;Fischer,1973
3. Continnous Coating Thickness Measurements by beta Backscattering, Siemens AC Product Finishing;Kurz,1981
4. Method for measuring of coating thickness by the beta backscatter method;ASTM,1980
5. Practice for measuring thickness of electrodeposited and related coatings;ASTM,1980