1. Coal for Chemicals;Anonymous;Coal Age,1952
2. Industrial scale production of hydrogen from natural gas, naphtha and coal
3. Fixed-bed pyrolysis of coal under hydrogen pressure at low heating rates
4. Cyprès, R., Furfari, S. and Marcourt, M. (1983). 12th Congres of the World Energy Conference, W.E.C. 1.2–09–New Delhi.