1. Belle B, Phillips HR (2009) Influence of section return dust levels as an exposure indicator and assessment parameter of engineering control in coal mines. J Mine Ventil Soc South Afr 62(4):6–9
2. Black N, Dilworth M, Summers N (2007) Occupational exposure to wood dust in the British woodworking industry in 1999/2000. Ann Occup Hyg 51(3):249–260
3. Bradley D, Pulling DJ (1959) Flow patterns in the hydraulic cyclone and their interpretation in terms of performance. Chem Eng Res Des 37(1):34–45
4. Clayton T, Crowe JD, Schwarzkopf MS, Yutaka T (2011) Multiphase flows with droplets and particles. Taylor & Francis Group, New York
5. Colinet JF, Goodman GVR, Listak JM (2005) Effective control of respirable dust in underground coal mines in the United States. Australasian Institute of Mining and Metallurgy, Victoria, pp 129–134