Hodkinson, J. R. (1956). Studies, by a radio-active tracer method, of the turbulent diffusion of gas and fine dust in mine ventilation currents: Interim report. Ministry of Fuel and Power, Safety in Mines Research Establishment.

Hodkinson, J. R. Studies, by a Radio-active Tracer Method, of the Turbulent Diffusion of Gas and Fine Dust in Mine Ventilation Currents: Interim Report. Sheffield: Ministry of Fuel and Power, Safety in Mines Research Establishment, 1956.

Hodkinson, J. R. Studies, by a Radio-active Tracer Method, of the Turbulent Diffusion of Gas and Fine Dust in Mine Ventilation Currents: Interim Report. Ministry of Fuel and Power, Safety in Mines Research Establishment, 1956.