1. Fundamental concepts of measurement;Finkelstein,1973
2. Problems in theory of measurement today;Gonella,1979
3. Contribution of measurement theory to the development of measurement engineering;Hofmann,1979
4. Expression of the functional performance of electronic measuring equipment;IEC;Recommendation, Publication 359,1971
5. Recommendations for direct acting indicating electrical measuring instruments and their accessories;IEC;Recommendation, Publication 51,1973