1. Proc. Edison Electric Institute-National Coal Association-Bureau of Mines Symposium;Fly ash utilization,1967
2. Investigations into problems associated with the combustion of Morwell brown coal;Brown;CSIRO Division of Coal Research Report,1961
3. ASME Winter Annual Meeting;Bonafede,1973
4. Lignite Symposium;Higgins,1973
5. Mössbauer studies of iron in Lurgi gasification ashes and power plant fly and bottom ash