1. Alten, technical literature, (Alten, via Monte Carmelo, 5, 00166 Roma, Italy)
2. Knight, J A and Gorton C W et al., Proceedings USDoE 1985 Biomass Thermochemical Conversion Contractors Meeting, Minneapolis, 1985.
3. Piskorz, J and Scott, D S, ACS Annual Meeting, CELL Division, Denver April 1987.
4. Reed, T B, ACS Annual Meeting, CELL Division, Denver April 1987.
5. Roy, C, ACS Annual Meeting, CELL Division, Denver April 1987.