1. L. Lamarre, EPRI J. (1994) 6
2. The technical and economic feasibility of biomass gasification for power generation
3. J. Leppälahti, T. Koljonen, A. Maikanen, A. Hase, in: VTT Symposium 163, VTT, Espoo, Finland, 1996, p. 131
4. E.R. Tucci, Hydrocarbon Process. (1982) 159