1. Hydrates of Natural Gas;Makogon,1981
2. Clathrate Hydrates of Natural Gases;Sloan,1998
3. Natural gas Hydrates;Carroll,2009
4. Gas hydrates as a potential energy resource: A review of their methane content;Kvenvolden,1993
5. Biohydrogen: For Future Engine Fuel Demands;Demirbas,2009