References
- Krisko , W. J. 1975 . Development and Testing of Canopy Air Curtain Devices. Mines Open File Report. 85-75, 106 pp Springfield, VA : National Technical Information Service . NTIS Pub. No. PB-246-041
- Jayaraman , N. I. 1976 . Control of Respirable Dust by Ventilation. Proceedings of the: Bureau of Mines Technology Transfer Seminar . 1976 , Pittsburgh, PA.
- Ford , V. H.W. and Hole , B. J. 1983 . Air Curtains for Reducing Exposure of Heading Machine Operators to Dust in Coal Mines. Proceedings of the British Occupational Hygiene Society Annual Conference . 1983 .