1. Commonwealth of Independent States Standard GOST 12.1.003-83. Occupational Safety Standards System. Noise. General Requirements of Safety (in Russian).
2. Commonwealth of Independents States Standard SNiP II-12-77. Occupational Safety Standards System. Protection away from the Noise. Designing Standards (in Russian).
3. Handbook of Non-Ferrous Metal Powders,1997
4. Laboratory equipment and test procedures for evaluating explosibility of dusts;Dorsett,1960