1. Technology for conversion of solar energy to fuel — experimental anaerobic conversion of aquatic and waste biomass to fuel gas;Christopher;United Aircraft Research Laboratories, United Aircraft Corporation, East Hartford, Connecticut, Report N911599-5,1974
2. Technology for conversion of solar energy to fuel - mariculture investigation: Ocean farming and fuel production;Szetela;United Aircraft Research Laboratories, United Aircraft Corporation, East Hartford, Connecitcut, Report N911599-4,1974
3. Bio-conversion of water hyacinths into methane gas;Wolverton;NASA Tech. Memorandum TM-X-72725,1975
4. Fuel gas production by anaerobic digestion of kelp
5. Determinants of feasibility in bioconversion of solar energy;Oswald,1976