Progress in Energy and Combustion Science Progress in Energy and Combustion Science, Vol.21, No.3 Entire volume, number list ISSN: 0360-1285 (Print) In this Issue (2 articles) 197 - 237 The Global Equivalence Ratio Concept and the Formation Mechanisms of Carbon-Monoxide in Enclosure FiresPitts WM 239 - 268 Fluidized-Bed Combustion of Alternative Solid Fuels - Status, Successes and Problems of the TechnologyAnthony EJ