@book{155157,
	author = {Gerling, P. and Federal Institute for Geosciences and Natural Resources (Alemania) and World Petroleum Congress (15th. : 1997 : Beijing) and Kockel, F. and Federal Institute for Geosciences and Natural Resources (Alemania)},
	title = {Deep natural gas},
	note = {Incluído en : Block 1- Exploration.}
}