1. Current status and past trends of the global carbon cycle;Sabine,2004
2. The carbon dioxide problem. Mankind energy needs and environmental pollution;Aresta,1986
3. A look back at the US Department of Energy's aquatic species program- biodiesel from algae;Sheehan,1998
4. Biodiesel from microalgae;Christi;Biotechnol Adv,2007
5. Algae@work web site, http://www.algaeatwork.com visited on August 5; 2008.