1. The International System of Units (SI);Bureau International des Poids et Mesures,2006
2. The International System of Units (SI) Conversion Factors for General Use;Butcher,2006
3. An Introduction to the Mechanics of Solids;Crandall,1972
4. Units of Weight and Measures (United States Customary and Metric) Definitions and Tables of Equivalents;Judson,1960
5. A new precise determination of Newton's gravitational constant;Michaelis;Metrologia,1995