1. Knopf UC. Decentralized production of biodegradable lubricants, renewable fuels, fodder, and electricity from oil crops on the production-site, mobile units. In: Biomass, Proceedings of biomass conference, 4th ed., vol. 1. Amsterdam; 1999. p. 601–3.
2. Nicoletti G, et al. A technical-environmental comparison of some agricultural biomasses. In: Biomass, Proceedings of biomass conference, 4th ed., vol. 1. Amsterdam; 1999. p. 1565–71.
3. Bioenergy—a renewable carbon sink;Sims;Renewable Energy,2001
4. Assessment of biomass potential for power production: a GIS based method;Voivontas;Biomass Bioenergy,2001
5. Method for spatially explicit calculations of potential biomass yields and assessment of land availability for biomass energy production in Northeastern Brazil;Schneider;Agric Ecosystems Environ,2001